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Finding the Fourth Proportional to 486,891.91, 672,098.31 and 435,814.53

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Solution

The fourth proportional to 486,891.91, 672,098.31 and 435,814.53 is: 601,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,891.91 : 672,098.31 = 435,814.53 : x
  2. Step 2: Convert to fraction form
    486,891.91/672,098.31 = 435,814.53/x
  3. Step 3: Cross multiply
    486,891.91x = 672,098.31 × 435,814.53
  4. Step 4: Simplify right side
    486,891.91x = 292,910,206,566.08
  5. Step 5: Solve for x
    x = 292,910,206,566.08/486,891.91
  6. Step 6: Final answer
    x = 601,591.85

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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.