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Finding the Fourth Proportional to 572,400.60, 858,600.90 and 173,321.70

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Solution

The fourth proportional to 572,400.60, 858,600.90 and 173,321.70 is: 259,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,400.60 : 858,600.90 = 173,321.70 : x
  2. Step 2: Convert to fraction form
    572,400.60/858,600.90 = 173,321.70/x
  3. Step 3: Cross multiply
    572,400.60x = 858,600.90 × 173,321.70
  4. Step 4: Simplify right side
    572,400.60x = 148,814,167,609.53
  5. Step 5: Solve for x
    x = 148,814,167,609.53/572,400.60
  6. Step 6: Final answer
    x = 259,982.55

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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.