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Finding the Fourth Proportional to 572,523.70, 858,785.55 and 542,999.20

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Solution

The fourth proportional to 572,523.70, 858,785.55 and 542,999.20 is: 814,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,523.70 : 858,785.55 = 542,999.20 : x
  2. Step 2: Convert to fraction form
    572,523.70/858,785.55 = 542,999.20/x
  3. Step 3: Cross multiply
    572,523.70x = 858,785.55 × 542,999.20
  4. Step 4: Simplify right side
    572,523.70x = 466,319,866,621.56
  5. Step 5: Solve for x
    x = 466,319,866,621.56/572,523.70
  6. Step 6: Final answer
    x = 814,498.80

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Similar ratio
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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.