Home / 865,546.80-1,298,320.20-225,849.30

Finding the Fourth Proportional to 865,546.80, 1,298,320.20 and 225,849.30

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Solution

The fourth proportional to 865,546.80, 1,298,320.20 and 225,849.30 is: 338,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,546.80 : 1,298,320.20 = 225,849.30 : x
  2. Step 2: Convert to fraction form
    865,546.80/1,298,320.20 = 225,849.30/x
  3. Step 3: Cross multiply
    865,546.80x = 1,298,320.20 × 225,849.30
  4. Step 4: Simplify right side
    865,546.80x = 293,224,708,345.86
  5. Step 5: Solve for x
    x = 293,224,708,345.86/865,546.80
  6. Step 6: Final answer
    x = 338,773.95

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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.