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Finding the Fourth Proportional to 617,909.67, 852,691.71 and 345,952.14

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Solution

The fourth proportional to 617,909.67, 852,691.71 and 345,952.14 is: 477,400.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,909.67 : 852,691.71 = 345,952.14 : x
  2. Step 2: Convert to fraction form
    617,909.67/852,691.71 = 345,952.14/x
  3. Step 3: Cross multiply
    617,909.67x = 852,691.71 × 345,952.14
  4. Step 4: Simplify right side
    617,909.67x = 294,990,521,834.76
  5. Step 5: Solve for x
    x = 294,990,521,834.76/617,909.67
  6. Step 6: Final answer
    x = 477,400.72

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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.