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Finding the Fourth Proportional to 636,418.46, 954,892.04 and 257,606.98

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Solution

The fourth proportional to 636,418.46, 954,892.04 and 257,606.98 is: 386,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,418.46 : 954,892.04 = 257,606.98 : x
  2. Step 2: Convert to fraction form
    636,418.46/954,892.04 = 257,606.98/x
  3. Step 3: Cross multiply
    636,418.46x = 954,892.04 × 257,606.98
  4. Step 4: Simplify right side
    636,418.46x = 245,986,854,650.44
  5. Step 5: Solve for x
    x = 245,986,854,650.44/636,418.46
  6. Step 6: Final answer
    x = 386,517.47

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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.