Home / 418,748.22-627,883.65-285,789.42

Finding the Fourth Proportional to 418,748.22, 627,883.65 and 285,789.42

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Solution

The fourth proportional to 418,748.22, 627,883.65 and 285,789.42 is: 428,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,748.22 : 627,883.65 = 285,789.42 : x
  2. Step 2: Convert to fraction form
    418,748.22/627,883.65 = 285,789.42/x
  3. Step 3: Cross multiply
    418,748.22x = 627,883.65 × 285,789.42
  4. Step 4: Simplify right side
    418,748.22x = 179,442,504,160.98
  5. Step 5: Solve for x
    x = 179,442,504,160.98/418,748.22
  6. Step 6: Final answer
    x = 428,521.23

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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.