Home / 486,972.26-730,458.38-131,986.27

Finding the Fourth Proportional to 486,972.26, 730,458.38 and 131,986.27

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Solution

The fourth proportional to 486,972.26, 730,458.38 and 131,986.27 is: 197,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,972.26 : 730,458.38 = 131,986.27 : x
  2. Step 2: Convert to fraction form
    486,972.26/730,458.38 = 131,986.27/x
  3. Step 3: Cross multiply
    486,972.26x = 730,458.38 × 131,986.27
  4. Step 4: Simplify right side
    486,972.26x = 96,410,476,966.44
  5. Step 5: Solve for x
    x = 96,410,476,966.44/486,972.26
  6. Step 6: Final answer
    x = 197,979.40

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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.