Home / 644,488.92-966,727.22-391,839.16

Finding the Fourth Proportional to 644,488.92, 966,727.22 and 391,839.16

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Solution

The fourth proportional to 644,488.92, 966,727.22 and 391,839.16 is: 587,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,488.92 : 966,727.22 = 391,839.16 : x
  2. Step 2: Convert to fraction form
    644,488.92/966,727.22 = 391,839.16/x
  3. Step 3: Cross multiply
    644,488.92x = 966,727.22 × 391,839.16
  4. Step 4: Simplify right side
    644,488.92x = 378,801,578,927.32
  5. Step 5: Solve for x
    x = 378,801,578,927.32/644,488.92
  6. Step 6: Final answer
    x = 587,754.99

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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.