Home / 547,268.20-820,902.30-472,472.80

Finding the Fourth Proportional to 547,268.20, 820,902.30 and 472,472.80

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Solution

The fourth proportional to 547,268.20, 820,902.30 and 472,472.80 is: 708,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,268.20 : 820,902.30 = 472,472.80 : x
  2. Step 2: Convert to fraction form
    547,268.20/820,902.30 = 472,472.80/x
  3. Step 3: Cross multiply
    547,268.20x = 820,902.30 × 472,472.80
  4. Step 4: Simplify right side
    547,268.20x = 387,854,008,207.44
  5. Step 5: Solve for x
    x = 387,854,008,207.44/547,268.20
  6. Step 6: Final answer
    x = 708,709.20

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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.