Home / 771,463.62-1,157,380.11-321,934.37

Finding the Fourth Proportional to 771,463.62, 1,157,380.11 and 321,934.37

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Solution

The fourth proportional to 771,463.62, 1,157,380.11 and 321,934.37 is: 482,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,463.62 : 1,157,380.11 = 321,934.37 : x
  2. Step 2: Convert to fraction form
    771,463.62/1,157,380.11 = 321,934.37/x
  3. Step 3: Cross multiply
    771,463.62x = 1,157,380.11 × 321,934.37
  4. Step 4: Simplify right side
    771,463.62x = 372,600,436,563.38
  5. Step 5: Solve for x
    x = 372,600,436,563.38/771,463.62
  6. Step 6: Final answer
    x = 482,978.62

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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.