Home / 752,663.61-1,038,666.98-408,500.15

Finding the Fourth Proportional to 752,663.61, 1,038,666.98 and 408,500.15

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Solution

The fourth proportional to 752,663.61, 1,038,666.98 and 408,500.15 is: 563,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,663.61 : 1,038,666.98 = 408,500.15 : x
  2. Step 2: Convert to fraction form
    752,663.61/1,038,666.98 = 408,500.15/x
  3. Step 3: Cross multiply
    752,663.61x = 1,038,666.98 × 408,500.15
  4. Step 4: Simplify right side
    752,663.61x = 424,295,612,957.96
  5. Step 5: Solve for x
    x = 424,295,612,957.96/752,663.61
  6. Step 6: Final answer
    x = 563,725.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.