Home / 718,387.38-989,551.89-548,326.26

Finding the Fourth Proportional to 718,387.38, 989,551.89 and 548,326.26

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Solution

The fourth proportional to 718,387.38, 989,551.89 and 548,326.26 is: 755,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,387.38 : 989,551.89 = 548,326.26 : x
  2. Step 2: Convert to fraction form
    718,387.38/989,551.89 = 548,326.26/x
  3. Step 3: Cross multiply
    718,387.38x = 989,551.89 × 548,326.26
  4. Step 4: Simplify right side
    718,387.38x = 542,597,286,919.63
  5. Step 5: Solve for x
    x = 542,597,286,919.63/718,387.38
  6. Step 6: Final answer
    x = 755,299.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.