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Finding the Fourth Proportional to 522,901.80, 784,352.70 and 487,472.40

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Solution

The fourth proportional to 522,901.80, 784,352.70 and 487,472.40 is: 731,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,901.80 : 784,352.70 = 487,472.40 : x
  2. Step 2: Convert to fraction form
    522,901.80/784,352.70 = 487,472.40/x
  3. Step 3: Cross multiply
    522,901.80x = 784,352.70 × 487,472.40
  4. Step 4: Simplify right side
    522,901.80x = 382,350,293,115.48
  5. Step 5: Solve for x
    x = 382,350,293,115.48/522,901.80
  6. Step 6: Final answer
    x = 731,208.60

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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.