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Finding the Fourth Proportional to 636,447.39, 948,675.57 and 585,371.43

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Solution

The fourth proportional to 636,447.39, 948,675.57 and 585,371.43 is: 872,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,447.39 : 948,675.57 = 585,371.43 : x
  2. Step 2: Convert to fraction form
    636,447.39/948,675.57 = 585,371.43/x
  3. Step 3: Cross multiply
    636,447.39x = 948,675.57 × 585,371.43
  4. Step 4: Simplify right side
    636,447.39x = 555,327,575,016.97
  5. Step 5: Solve for x
    x = 555,327,575,016.97/636,447.39
  6. Step 6: Final answer
    x = 872,542.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.