Home / 1,123,331.60-1,684,997.40-324,639.20

Finding the Fourth Proportional to 1,123,331.60, 1,684,997.40 and 324,639.20

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Solution

The fourth proportional to 1,123,331.60, 1,684,997.40 and 324,639.20 is: 486,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,331.60 : 1,684,997.40 = 324,639.20 : x
  2. Step 2: Convert to fraction form
    1,123,331.60/1,684,997.40 = 324,639.20/x
  3. Step 3: Cross multiply
    1,123,331.60x = 1,684,997.40 × 324,639.20
  4. Step 4: Simplify right side
    1,123,331.60x = 547,016,207,938.08
  5. Step 5: Solve for x
    x = 547,016,207,938.08/1,123,331.60
  6. Step 6: Final answer
    x = 486,958.80

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Half scale
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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.