Home / 748,856.40-1,123,289.40-299,614.80

Finding the Fourth Proportional to 748,856.40, 1,123,289.40 and 299,614.80

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Solution

The fourth proportional to 748,856.40, 1,123,289.40 and 299,614.80 is: 449,424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,856.40 : 1,123,289.40 = 299,614.80 : x
  2. Step 2: Convert to fraction form
    748,856.40/1,123,289.40 = 299,614.80/x
  3. Step 3: Cross multiply
    748,856.40x = 1,123,289.40 × 299,614.80
  4. Step 4: Simplify right side
    748,856.40x = 336,554,128,923.12
  5. Step 5: Solve for x
    x = 336,554,128,923.12/748,856.40
  6. Step 6: Final answer
    x = 449,424.12

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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.