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Finding the Fourth Proportional to 558,715, 770,892.24 and 329,281.42

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Solution

The fourth proportional to 558,715, 770,892.24 and 329,281.42 is: 454,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,715 : 770,892.24 = 329,281.42 : x
  2. Step 2: Convert to fraction form
    558,715/770,892.24 = 329,281.42/x
  3. Step 3: Cross multiply
    558,715x = 770,892.24 × 329,281.42
  4. Step 4: Simplify right side
    558,715x = 253,840,491,454.18
  5. Step 5: Solve for x
    x = 253,840,491,454.18/558,715
  6. Step 6: Final answer
    x = 454,329.11

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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.