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Finding the Fourth Proportional to 690,179.28, 952,468.56 and 375,872.24

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Solution

The fourth proportional to 690,179.28, 952,468.56 and 375,872.24 is: 518,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,179.28 : 952,468.56 = 375,872.24 : x
  2. Step 2: Convert to fraction form
    690,179.28/952,468.56 = 375,872.24/x
  3. Step 3: Cross multiply
    690,179.28x = 952,468.56 × 375,872.24
  4. Step 4: Simplify right side
    690,179.28x = 358,006,491,176.77
  5. Step 5: Solve for x
    x = 358,006,491,176.77/690,179.28
  6. Step 6: Final answer
    x = 518,715.21

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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.