Home / 1,145,246.50-1,580,505.78-635,981.68

Finding the Fourth Proportional to 1,145,246.50, 1,580,505.78 and 635,981.68

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Solution

The fourth proportional to 1,145,246.50, 1,580,505.78 and 635,981.68 is: 877,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,246.50 : 1,580,505.78 = 635,981.68 : x
  2. Step 2: Convert to fraction form
    1,145,246.50/1,580,505.78 = 635,981.68/x
  3. Step 3: Cross multiply
    1,145,246.50x = 1,580,505.78 × 635,981.68
  4. Step 4: Simplify right side
    1,145,246.50x = 1,005,172,721,214.11
  5. Step 5: Solve for x
    x = 1,005,172,721,214.11/1,145,246.50
  6. Step 6: Final answer
    x = 877,691.15

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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.