Home / 728,891.60-1,093,337.40-255,624.80

Finding the Fourth Proportional to 728,891.60, 1,093,337.40 and 255,624.80

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Solution

The fourth proportional to 728,891.60, 1,093,337.40 and 255,624.80 is: 383,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,891.60 : 1,093,337.40 = 255,624.80 : x
  2. Step 2: Convert to fraction form
    728,891.60/1,093,337.40 = 255,624.80/x
  3. Step 3: Cross multiply
    728,891.60x = 1,093,337.40 × 255,624.80
  4. Step 4: Simplify right side
    728,891.60x = 279,484,154,207.52
  5. Step 5: Solve for x
    x = 279,484,154,207.52/728,891.60
  6. Step 6: Final answer
    x = 383,437.20

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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.