Home / 687,652.20-1,031,139.18-282,770.46

Finding the Fourth Proportional to 687,652.20, 1,031,139.18 and 282,770.46

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Solution

The fourth proportional to 687,652.20, 1,031,139.18 and 282,770.46 is: 424,016.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,652.20 : 1,031,139.18 = 282,770.46 : x
  2. Step 2: Convert to fraction form
    687,652.20/1,031,139.18 = 282,770.46/x
  3. Step 3: Cross multiply
    687,652.20x = 1,031,139.18 × 282,770.46
  4. Step 4: Simplify right side
    687,652.20x = 291,575,700,252.62
  5. Step 5: Solve for x
    x = 291,575,700,252.62/687,652.20
  6. Step 6: Final answer
    x = 424,016.24

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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.