Home / 728,853.60-1,093,280.40-255,586.80

Finding the Fourth Proportional to 728,853.60, 1,093,280.40 and 255,586.80

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Solution

The fourth proportional to 728,853.60, 1,093,280.40 and 255,586.80 is: 383,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,853.60 : 1,093,280.40 = 255,586.80 : x
  2. Step 2: Convert to fraction form
    728,853.60/1,093,280.40 = 255,586.80/x
  3. Step 3: Cross multiply
    728,853.60x = 1,093,280.40 × 255,586.80
  4. Step 4: Simplify right side
    728,853.60x = 279,428,038,938.72
  5. Step 5: Solve for x
    x = 279,428,038,938.72/728,853.60
  6. Step 6: Final answer
    x = 383,380.20

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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.