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Finding the Fourth Proportional to 884,807.60, 1,327,211.40 and 219,959.60

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Solution

The fourth proportional to 884,807.60, 1,327,211.40 and 219,959.60 is: 329,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,807.60 : 1,327,211.40 = 219,959.60 : x
  2. Step 2: Convert to fraction form
    884,807.60/1,327,211.40 = 219,959.60/x
  3. Step 3: Cross multiply
    884,807.60x = 1,327,211.40 × 219,959.60
  4. Step 4: Simplify right side
    884,807.60x = 291,932,888,659.44
  5. Step 5: Solve for x
    x = 291,932,888,659.44/884,807.60
  6. Step 6: Final answer
    x = 329,939.40

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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.