Home / 748,925.80-1,123,388.70-329,021.80

Finding the Fourth Proportional to 748,925.80, 1,123,388.70 and 329,021.80

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Solution

The fourth proportional to 748,925.80, 1,123,388.70 and 329,021.80 is: 493,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,925.80 : 1,123,388.70 = 329,021.80 : x
  2. Step 2: Convert to fraction form
    748,925.80/1,123,388.70 = 329,021.80/x
  3. Step 3: Cross multiply
    748,925.80x = 1,123,388.70 × 329,021.80
  4. Step 4: Simplify right side
    748,925.80x = 369,619,372,173.66
  5. Step 5: Solve for x
    x = 369,619,372,173.66/748,925.80
  6. Step 6: Final answer
    x = 493,532.70

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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.