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Finding the Fourth Proportional to 616,008.16, 850,105.20 and 361,542.88

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Solution

The fourth proportional to 616,008.16, 850,105.20 and 361,542.88 is: 498,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,008.16 : 850,105.20 = 361,542.88 : x
  2. Step 2: Convert to fraction form
    616,008.16/850,105.20 = 361,542.88/x
  3. Step 3: Cross multiply
    616,008.16x = 850,105.20 × 361,542.88
  4. Step 4: Simplify right side
    616,008.16x = 307,349,482,310.98
  5. Step 5: Solve for x
    x = 307,349,482,310.98/616,008.16
  6. Step 6: Final answer
    x = 498,937.36

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1.5x scale

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.