Home / 412,309.29-617,753.88-322,317

Finding the Fourth Proportional to 412,309.29, 617,753.88 and 322,317

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Solution

The fourth proportional to 412,309.29, 617,753.88 and 322,317 is: 482,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,309.29 : 617,753.88 = 322,317 : x
  2. Step 2: Convert to fraction form
    412,309.29/617,753.88 = 322,317/x
  3. Step 3: Cross multiply
    412,309.29x = 617,753.88 × 322,317
  4. Step 4: Simplify right side
    412,309.29x = 199,112,577,339.96
  5. Step 5: Solve for x
    x = 199,112,577,339.96/412,309.29
  6. Step 6: Final answer
    x = 482,920.42

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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.