Home / 746,517.80-1,119,776.70-443,399.60

Finding the Fourth Proportional to 746,517.80, 1,119,776.70 and 443,399.60

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Solution

The fourth proportional to 746,517.80, 1,119,776.70 and 443,399.60 is: 665,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,517.80 : 1,119,776.70 = 443,399.60 : x
  2. Step 2: Convert to fraction form
    746,517.80/1,119,776.70 = 443,399.60/x
  3. Step 3: Cross multiply
    746,517.80x = 1,119,776.70 × 443,399.60
  4. Step 4: Simplify right side
    746,517.80x = 496,508,540,869.32
  5. Step 5: Solve for x
    x = 496,508,540,869.32/746,517.80
  6. Step 6: Final answer
    x = 665,099.40

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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.