Home / 861,726.18-1,291,989.69-381,693.42

Finding the Fourth Proportional to 861,726.18, 1,291,989.69 and 381,693.42

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Solution

The fourth proportional to 861,726.18, 1,291,989.69 and 381,693.42 is: 572,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,726.18 : 1,291,989.69 = 381,693.42 : x
  2. Step 2: Convert to fraction form
    861,726.18/1,291,989.69 = 381,693.42/x
  3. Step 3: Cross multiply
    861,726.18x = 1,291,989.69 × 381,693.42
  4. Step 4: Simplify right side
    861,726.18x = 493,143,963,380.84
  5. Step 5: Solve for x
    x = 493,143,963,380.84/861,726.18
  6. Step 6: Final answer
    x = 572,274.55

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