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Finding the Fourth Proportional to 675,950.49, 932,856.57 and 389,488.95

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Solution

The fourth proportional to 675,950.49, 932,856.57 and 389,488.95 is: 537,520.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,950.49 : 932,856.57 = 389,488.95 : x
  2. Step 2: Convert to fraction form
    675,950.49/932,856.57 = 389,488.95/x
  3. Step 3: Cross multiply
    675,950.49x = 932,856.57 × 389,488.95
  4. Step 4: Simplify right side
    675,950.49x = 363,337,325,949.90
  5. Step 5: Solve for x
    x = 363,337,325,949.90/675,950.49
  6. Step 6: Final answer
    x = 537,520.62

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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.