Home / 728,492.40-1,092,738.60-255,020.40

Finding the Fourth Proportional to 728,492.40, 1,092,738.60 and 255,020.40

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Solution

The fourth proportional to 728,492.40, 1,092,738.60 and 255,020.40 is: 382,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,492.40 : 1,092,738.60 = 255,020.40 : x
  2. Step 2: Convert to fraction form
    728,492.40/1,092,738.60 = 255,020.40/x
  3. Step 3: Cross multiply
    728,492.40x = 1,092,738.60 × 255,020.40
  4. Step 4: Simplify right side
    728,492.40x = 278,670,634,867.44
  5. Step 5: Solve for x
    x = 278,670,634,867.44/728,492.40
  6. Step 6: Final answer
    x = 382,530.60

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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.