Home / 870,818.25-1,306,241.22-331,082.76

Finding the Fourth Proportional to 870,818.25, 1,306,241.22 and 331,082.76

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Solution

The fourth proportional to 870,818.25, 1,306,241.22 and 331,082.76 is: 496,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,818.25 : 1,306,241.22 = 331,082.76 : x
  2. Step 2: Convert to fraction form
    870,818.25/1,306,241.22 = 331,082.76/x
  3. Step 3: Cross multiply
    870,818.25x = 1,306,241.22 × 331,082.76
  4. Step 4: Simplify right side
    870,818.25x = 432,473,948,343.37
  5. Step 5: Solve for x
    x = 432,473,948,343.37/870,818.25
  6. Step 6: Final answer
    x = 496,629.40

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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.