Home / 871,402.20-1,307,103.30-551,808.60

Finding the Fourth Proportional to 871,402.20, 1,307,103.30 and 551,808.60

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Solution

The fourth proportional to 871,402.20, 1,307,103.30 and 551,808.60 is: 827,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,402.20 : 1,307,103.30 = 551,808.60 : x
  2. Step 2: Convert to fraction form
    871,402.20/1,307,103.30 = 551,808.60/x
  3. Step 3: Cross multiply
    871,402.20x = 1,307,103.30 × 551,808.60
  4. Step 4: Simplify right side
    871,402.20x = 721,270,842,028.38
  5. Step 5: Solve for x
    x = 721,270,842,028.38/871,402.20
  6. Step 6: Final answer
    x = 827,712.90

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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.