Home / 861,046.20-1,291,569.30-742,948.20

Finding the Fourth Proportional to 861,046.20, 1,291,569.30 and 742,948.20

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Solution

The fourth proportional to 861,046.20, 1,291,569.30 and 742,948.20 is: 1,114,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,046.20 : 1,291,569.30 = 742,948.20 : x
  2. Step 2: Convert to fraction form
    861,046.20/1,291,569.30 = 742,948.20/x
  3. Step 3: Cross multiply
    861,046.20x = 1,291,569.30 × 742,948.20
  4. Step 4: Simplify right side
    861,046.20x = 959,569,086,610.26
  5. Step 5: Solve for x
    x = 959,569,086,610.26/861,046.20
  6. Step 6: Final answer
    x = 1,114,422.30

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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.