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Finding the Fourth Proportional to 632,699.52, 873,347.52 and 391,167.36

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Solution

The fourth proportional to 632,699.52, 873,347.52 and 391,167.36 is: 539,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,699.52 : 873,347.52 = 391,167.36 : x
  2. Step 2: Convert to fraction form
    632,699.52/873,347.52 = 391,167.36/x
  3. Step 3: Cross multiply
    632,699.52x = 873,347.52 × 391,167.36
  4. Step 4: Simplify right side
    632,699.52x = 341,625,043,760.95
  5. Step 5: Solve for x
    x = 341,625,043,760.95/632,699.52
  6. Step 6: Final answer
    x = 539,948.32

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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.