Home / 577,115.38-865,716.59-172,275.62

Finding the Fourth Proportional to 577,115.38, 865,716.59 and 172,275.62

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Solution

The fourth proportional to 577,115.38, 865,716.59 and 172,275.62 is: 258,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,115.38 : 865,716.59 = 172,275.62 : x
  2. Step 2: Convert to fraction form
    577,115.38/865,716.59 = 172,275.62/x
  3. Step 3: Cross multiply
    577,115.38x = 865,716.59 × 172,275.62
  4. Step 4: Simplify right side
    577,115.38x = 149,141,864,881.52
  5. Step 5: Solve for x
    x = 149,141,864,881.52/577,115.38
  6. Step 6: Final answer
    x = 258,426.43

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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.