Home / 828,204.90-1,242,307.35-267,239.40

Finding the Fourth Proportional to 828,204.90, 1,242,307.35 and 267,239.40

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Solution

The fourth proportional to 828,204.90, 1,242,307.35 and 267,239.40 is: 400,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,204.90 : 1,242,307.35 = 267,239.40 : x
  2. Step 2: Convert to fraction form
    828,204.90/1,242,307.35 = 267,239.40/x
  3. Step 3: Cross multiply
    828,204.90x = 1,242,307.35 × 267,239.40
  4. Step 4: Simplify right side
    828,204.90x = 331,993,470,829.59
  5. Step 5: Solve for x
    x = 331,993,470,829.59/828,204.90
  6. Step 6: Final answer
    x = 400,859.10

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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.