Home / 1,187,950.25-1,781,138.26-429,691.94

Finding the Fourth Proportional to 1,187,950.25, 1,781,138.26 and 429,691.94

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Solution

The fourth proportional to 1,187,950.25, 1,781,138.26 and 429,691.94 is: 644,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,950.25 : 1,781,138.26 = 429,691.94 : x
  2. Step 2: Convert to fraction form
    1,187,950.25/1,781,138.26 = 429,691.94/x
  3. Step 3: Cross multiply
    1,187,950.25x = 1,781,138.26 × 429,691.94
  4. Step 4: Simplify right side
    1,187,950.25x = 765,340,752,658.32
  5. Step 5: Solve for x
    x = 765,340,752,658.32/1,187,950.25
  6. Step 6: Final answer
    x = 644,253.20

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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.