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Finding the Fourth Proportional to 641,737.28, 885,607.98 and 351,344

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Solution

The fourth proportional to 641,737.28, 885,607.98 and 351,344 is: 484,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,737.28 : 885,607.98 = 351,344 : x
  2. Step 2: Convert to fraction form
    641,737.28/885,607.98 = 351,344/x
  3. Step 3: Cross multiply
    641,737.28x = 885,607.98 × 351,344
  4. Step 4: Simplify right side
    641,737.28x = 311,153,050,125.12
  5. Step 5: Solve for x
    x = 311,153,050,125.12/641,737.28
  6. Step 6: Final answer
    x = 484,860.49

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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.