Home / 981,679.20-1,472,518.80-350,613.60

Finding the Fourth Proportional to 981,679.20, 1,472,518.80 and 350,613.60

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Solution

The fourth proportional to 981,679.20, 1,472,518.80 and 350,613.60 is: 525,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,679.20 : 1,472,518.80 = 350,613.60 : x
  2. Step 2: Convert to fraction form
    981,679.20/1,472,518.80 = 350,613.60/x
  3. Step 3: Cross multiply
    981,679.20x = 1,472,518.80 × 350,613.60
  4. Step 4: Simplify right side
    981,679.20x = 516,285,117,535.68
  5. Step 5: Solve for x
    x = 516,285,117,535.68/981,679.20
  6. Step 6: Final answer
    x = 525,920.40

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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.