Home / 887,781.08-1,331,736.42-256,698.20

Finding the Fourth Proportional to 887,781.08, 1,331,736.42 and 256,698.20

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Solution

The fourth proportional to 887,781.08, 1,331,736.42 and 256,698.20 is: 385,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,781.08 : 1,331,736.42 = 256,698.20 : x
  2. Step 2: Convert to fraction form
    887,781.08/1,331,736.42 = 256,698.20/x
  3. Step 3: Cross multiply
    887,781.08x = 1,331,736.42 × 256,698.20
  4. Step 4: Simplify right side
    887,781.08x = 341,854,341,888.44
  5. Step 5: Solve for x
    x = 341,854,341,888.44/887,781.08
  6. Step 6: Final answer
    x = 385,066.04

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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.