Home / 406,488.78-609,513.26-322,787.43

Finding the Fourth Proportional to 406,488.78, 609,513.26 and 322,787.43

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Solution

The fourth proportional to 406,488.78, 609,513.26 and 322,787.43 is: 484,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,488.78 : 609,513.26 = 322,787.43 : x
  2. Step 2: Convert to fraction form
    406,488.78/609,513.26 = 322,787.43/x
  3. Step 3: Cross multiply
    406,488.78x = 609,513.26 × 322,787.43
  4. Step 4: Simplify right side
    406,488.78x = 196,743,217,132.39
  5. Step 5: Solve for x
    x = 196,743,217,132.39/406,488.78
  6. Step 6: Final answer
    x = 484,006.51

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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.