Home / 493,318.20-739,977.30-392,934.90

Finding the Fourth Proportional to 493,318.20, 739,977.30 and 392,934.90

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Solution

The fourth proportional to 493,318.20, 739,977.30 and 392,934.90 is: 589,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,318.20 : 739,977.30 = 392,934.90 : x
  2. Step 2: Convert to fraction form
    493,318.20/739,977.30 = 392,934.90/x
  3. Step 3: Cross multiply
    493,318.20x = 739,977.30 × 392,934.90
  4. Step 4: Simplify right side
    493,318.20x = 290,762,906,377.77
  5. Step 5: Solve for x
    x = 290,762,906,377.77/493,318.20
  6. Step 6: Final answer
    x = 589,402.35

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Double scale
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Similar ratio
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1.5x scale

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.