Home / 486,972.26-730,458.40-131,986.28

Finding the Fourth Proportional to 486,972.26, 730,458.40 and 131,986.28

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Solution

The fourth proportional to 486,972.26, 730,458.40 and 131,986.28 is: 197,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,972.26 : 730,458.40 = 131,986.28 : x
  2. Step 2: Convert to fraction form
    486,972.26/730,458.40 = 131,986.28/x
  3. Step 3: Cross multiply
    486,972.26x = 730,458.40 × 131,986.28
  4. Step 4: Simplify right side
    486,972.26x = 96,410,488,406.93
  5. Step 5: Solve for x
    x = 96,410,488,406.93/486,972.26
  6. Step 6: Final answer
    x = 197,979.42

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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.