Home / 694,229.20-1,041,343.80-427,123.60

Finding the Fourth Proportional to 694,229.20, 1,041,343.80 and 427,123.60

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Solution

The fourth proportional to 694,229.20, 1,041,343.80 and 427,123.60 is: 640,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,229.20 : 1,041,343.80 = 427,123.60 : x
  2. Step 2: Convert to fraction form
    694,229.20/1,041,343.80 = 427,123.60/x
  3. Step 3: Cross multiply
    694,229.20x = 1,041,343.80 × 427,123.60
  4. Step 4: Simplify right side
    694,229.20x = 444,782,512,693.68
  5. Step 5: Solve for x
    x = 444,782,512,693.68/694,229.20
  6. Step 6: Final answer
    x = 640,685.40

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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.