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Finding the Fourth Proportional to 884,714.40, 1,327,071.60 and 485,200.80

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Solution

The fourth proportional to 884,714.40, 1,327,071.60 and 485,200.80 is: 727,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,714.40 : 1,327,071.60 = 485,200.80 : x
  2. Step 2: Convert to fraction form
    884,714.40/1,327,071.60 = 485,200.80/x
  3. Step 3: Cross multiply
    884,714.40x = 1,327,071.60 × 485,200.80
  4. Step 4: Simplify right side
    884,714.40x = 643,896,201,977.28
  5. Step 5: Solve for x
    x = 643,896,201,977.28/884,714.40
  6. Step 6: Final answer
    x = 727,801.20

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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.