Home / 828,102.40-1,242,153.60-267,136.90

Finding the Fourth Proportional to 828,102.40, 1,242,153.60 and 267,136.90

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Solution

The fourth proportional to 828,102.40, 1,242,153.60 and 267,136.90 is: 400,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,102.40 : 1,242,153.60 = 267,136.90 : x
  2. Step 2: Convert to fraction form
    828,102.40/1,242,153.60 = 267,136.90/x
  3. Step 3: Cross multiply
    828,102.40x = 1,242,153.60 × 267,136.90
  4. Step 4: Simplify right side
    828,102.40x = 331,825,062,027.84
  5. Step 5: Solve for x
    x = 331,825,062,027.84/828,102.40
  6. Step 6: Final answer
    x = 400,705.35

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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.