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Finding the Fourth Proportional to 424,751.82, 636,380.24 and 399,466.92

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Solution

The fourth proportional to 424,751.82, 636,380.24 and 399,466.92 is: 598,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,751.82 : 636,380.24 = 399,466.92 : x
  2. Step 2: Convert to fraction form
    424,751.82/636,380.24 = 399,466.92/x
  3. Step 3: Cross multiply
    424,751.82x = 636,380.24 × 399,466.92
  4. Step 4: Simplify right side
    424,751.82x = 254,212,854,421.66
  5. Step 5: Solve for x
    x = 254,212,854,421.66/424,751.82
  6. Step 6: Final answer
    x = 598,497.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.