Home / 861,686.13-1,292,721.03-262,693.83

Finding the Fourth Proportional to 861,686.13, 1,292,721.03 and 262,693.83

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Solution

The fourth proportional to 861,686.13, 1,292,721.03 and 262,693.83 is: 394,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,686.13 : 1,292,721.03 = 262,693.83 : x
  2. Step 2: Convert to fraction form
    861,686.13/1,292,721.03 = 262,693.83/x
  3. Step 3: Cross multiply
    861,686.13x = 1,292,721.03 × 262,693.83
  4. Step 4: Simplify right side
    861,686.13x = 339,589,838,492.25
  5. Step 5: Solve for x
    x = 339,589,838,492.25/861,686.13
  6. Step 6: Final answer
    x = 394,099.23

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1.5x scale

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.