Home / 748,923.78-1,123,385.70-250,287.78

Finding the Fourth Proportional to 748,923.78, 1,123,385.70 and 250,287.78

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Solution

The fourth proportional to 748,923.78, 1,123,385.70 and 250,287.78 is: 375,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,923.78 : 1,123,385.70 = 250,287.78 : x
  2. Step 2: Convert to fraction form
    748,923.78/1,123,385.70 = 250,287.78/x
  3. Step 3: Cross multiply
    748,923.78x = 1,123,385.70 × 250,287.78
  4. Step 4: Simplify right side
    748,923.78x = 281,169,712,936.75
  5. Step 5: Solve for x
    x = 281,169,712,936.75/748,923.78
  6. Step 6: Final answer
    x = 375,431.68

Related Problems

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Half scale
Find fourth proportional to 1,497,847.56, 2,246,771.40 and 500,575.56
Double scale
Find fourth proportional to 748,924.78, 1,123,387.20 and 250,288.78
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.