Home / 861,648.55-1,188,300.92-539,388.03

Finding the Fourth Proportional to 861,648.55, 1,188,300.92 and 539,388.03

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Solution

The fourth proportional to 861,648.55, 1,188,300.92 and 539,388.03 is: 743,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,648.55 : 1,188,300.92 = 539,388.03 : x
  2. Step 2: Convert to fraction form
    861,648.55/1,188,300.92 = 539,388.03/x
  3. Step 3: Cross multiply
    861,648.55x = 1,188,300.92 × 539,388.03
  4. Step 4: Simplify right side
    861,648.55x = 640,955,292,285.99
  5. Step 5: Solve for x
    x = 640,955,292,285.99/861,648.55
  6. Step 6: Final answer
    x = 743,870.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.