Home / 547,266.20-820,899.30-472,470.80

Finding the Fourth Proportional to 547,266.20, 820,899.30 and 472,470.80

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Solution

The fourth proportional to 547,266.20, 820,899.30 and 472,470.80 is: 708,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,266.20 : 820,899.30 = 472,470.80 : x
  2. Step 2: Convert to fraction form
    547,266.20/820,899.30 = 472,470.80/x
  3. Step 3: Cross multiply
    547,266.20x = 820,899.30 × 472,470.80
  4. Step 4: Simplify right side
    547,266.20x = 387,850,948,990.44
  5. Step 5: Solve for x
    x = 387,850,948,990.44/547,266.20
  6. Step 6: Final answer
    x = 708,706.20

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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.