Home / 987,421.65-1,481,416.17-410,932.71

Finding the Fourth Proportional to 987,421.65, 1,481,416.17 and 410,932.71

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Solution

The fourth proportional to 987,421.65, 1,481,416.17 and 410,932.71 is: 616,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,421.65 : 1,481,416.17 = 410,932.71 : x
  2. Step 2: Convert to fraction form
    987,421.65/1,481,416.17 = 410,932.71/x
  3. Step 3: Cross multiply
    987,421.65x = 1,481,416.17 × 410,932.71
  4. Step 4: Simplify right side
    987,421.65x = 608,762,361,375.92
  5. Step 5: Solve for x
    x = 608,762,361,375.92/987,421.65
  6. Step 6: Final answer
    x = 616,517.13

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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.