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Finding the Fourth Proportional to 853,755.60, 1,279,758.60 and 498,586.80

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Solution

The fourth proportional to 853,755.60, 1,279,758.60 and 498,586.80 is: 747,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,755.60 : 1,279,758.60 = 498,586.80 : x
  2. Step 2: Convert to fraction form
    853,755.60/1,279,758.60 = 498,586.80/x
  3. Step 3: Cross multiply
    853,755.60x = 1,279,758.60 × 498,586.80
  4. Step 4: Simplify right side
    853,755.60x = 638,070,745,146.48
  5. Step 5: Solve for x
    x = 638,070,745,146.48/853,755.60
  6. Step 6: Final answer
    x = 747,369.32

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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.