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Finding the Fourth Proportional to 871,296.60, 1,306,944.90 and 803,062.20

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Solution

The fourth proportional to 871,296.60, 1,306,944.90 and 803,062.20 is: 1,204,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,296.60 : 1,306,944.90 = 803,062.20 : x
  2. Step 2: Convert to fraction form
    871,296.60/1,306,944.90 = 803,062.20/x
  3. Step 3: Cross multiply
    871,296.60x = 1,306,944.90 × 803,062.20
  4. Step 4: Simplify right side
    871,296.60x = 1,049,558,046,672.78
  5. Step 5: Solve for x
    x = 1,049,558,046,672.78/871,296.60
  6. Step 6: Final answer
    x = 1,204,593.30

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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.