Home / 709,549.30-1,065,101.55-443,610.10

Finding the Fourth Proportional to 709,549.30, 1,065,101.55 and 443,610.10

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Solution

The fourth proportional to 709,549.30, 1,065,101.55 and 443,610.10 is: 665,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,549.30 : 1,065,101.55 = 443,610.10 : x
  2. Step 2: Convert to fraction form
    709,549.30/1,065,101.55 = 443,610.10/x
  3. Step 3: Cross multiply
    709,549.30x = 1,065,101.55 × 443,610.10
  4. Step 4: Simplify right side
    709,549.30x = 472,489,805,105.66
  5. Step 5: Solve for x
    x = 472,489,805,105.66/709,549.30
  6. Step 6: Final answer
    x = 665,901.31

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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.