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Finding the Fourth Proportional to 482,997.60, 724,496.40 and 305,704.80

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Solution

The fourth proportional to 482,997.60, 724,496.40 and 305,704.80 is: 458,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,997.60 : 724,496.40 = 305,704.80 : x
  2. Step 2: Convert to fraction form
    482,997.60/724,496.40 = 305,704.80/x
  3. Step 3: Cross multiply
    482,997.60x = 724,496.40 × 305,704.80
  4. Step 4: Simplify right side
    482,997.60x = 221,482,027,062.72
  5. Step 5: Solve for x
    x = 221,482,027,062.72/482,997.60
  6. Step 6: Final answer
    x = 458,557.20

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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.