Home / 861,168.62-1,290,571.95-545,061.26

Finding the Fourth Proportional to 861,168.62, 1,290,571.95 and 545,061.26

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Solution

The fourth proportional to 861,168.62, 1,290,571.95 and 545,061.26 is: 816,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,168.62 : 1,290,571.95 = 545,061.26 : x
  2. Step 2: Convert to fraction form
    861,168.62/1,290,571.95 = 545,061.26/x
  3. Step 3: Cross multiply
    861,168.62x = 1,290,571.95 × 545,061.26
  4. Step 4: Simplify right side
    861,168.62x = 703,440,773,187.66
  5. Step 5: Solve for x
    x = 703,440,773,187.66/861,168.62
  6. Step 6: Final answer
    x = 816,844.41

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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.