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Finding the Fourth Proportional to 675,757.80, 932,589.08 and 389,272.95

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Solution

The fourth proportional to 675,757.80, 932,589.08 and 389,272.95 is: 537,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,757.80 : 932,589.08 = 389,272.95 : x
  2. Step 2: Convert to fraction form
    675,757.80/932,589.08 = 389,272.95/x
  3. Step 3: Cross multiply
    675,757.80x = 932,589.08 × 389,272.95
  4. Step 4: Simplify right side
    675,757.80x = 363,031,701,822.80
  5. Step 5: Solve for x
    x = 363,031,701,822.80/675,757.80
  6. Step 6: Final answer
    x = 537,221.62

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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.