Home / 765,418.88-1,148,387.82-338,895.97

Finding the Fourth Proportional to 765,418.88, 1,148,387.82 and 338,895.97

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Solution

The fourth proportional to 765,418.88, 1,148,387.82 and 338,895.97 is: 508,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,418.88 : 1,148,387.82 = 338,895.97 : x
  2. Step 2: Convert to fraction form
    765,418.88/1,148,387.82 = 338,895.97/x
  3. Step 3: Cross multiply
    765,418.88x = 1,148,387.82 × 338,895.97
  4. Step 4: Simplify right side
    765,418.88x = 389,184,004,195.09
  5. Step 5: Solve for x
    x = 389,184,004,195.09/765,418.88
  6. Step 6: Final answer
    x = 508,458.85

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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.