Home / 486,921.80-730,037.10-187,286.60

Finding the Fourth Proportional to 486,921.80, 730,037.10 and 187,286.60

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Solution

The fourth proportional to 486,921.80, 730,037.10 and 187,286.60 is: 280,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,921.80 : 730,037.10 = 187,286.60 : x
  2. Step 2: Convert to fraction form
    486,921.80/730,037.10 = 187,286.60/x
  3. Step 3: Cross multiply
    486,921.80x = 730,037.10 × 187,286.60
  4. Step 4: Simplify right side
    486,921.80x = 136,726,166,332.86
  5. Step 5: Solve for x
    x = 136,726,166,332.86/486,921.80
  6. Step 6: Final answer
    x = 280,796.97

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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.