Home / 869,562.30-1,303,695.45-449,139.90

Finding the Fourth Proportional to 869,562.30, 1,303,695.45 and 449,139.90

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Solution

The fourth proportional to 869,562.30, 1,303,695.45 and 449,139.90 is: 673,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,562.30 : 1,303,695.45 = 449,139.90 : x
  2. Step 2: Convert to fraction form
    869,562.30/1,303,695.45 = 449,139.90/x
  3. Step 3: Cross multiply
    869,562.30x = 1,303,695.45 × 449,139.90
  4. Step 4: Simplify right side
    869,562.30x = 585,541,644,043.46
  5. Step 5: Solve for x
    x = 585,541,644,043.46/869,562.30
  6. Step 6: Final answer
    x = 673,375.15

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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.