Home / 418,822.95-627,996.42-285,864.15

Finding the Fourth Proportional to 418,822.95, 627,996.42 and 285,864.15

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Solution

The fourth proportional to 418,822.95, 627,996.42 and 285,864.15 is: 428,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,822.95 : 627,996.42 = 285,864.15 : x
  2. Step 2: Convert to fraction form
    418,822.95/627,996.42 = 285,864.15/x
  3. Step 3: Cross multiply
    418,822.95x = 627,996.42 × 285,864.15
  4. Step 4: Simplify right side
    418,822.95x = 179,521,662,806.34
  5. Step 5: Solve for x
    x = 179,521,662,806.34/418,822.95
  6. Step 6: Final answer
    x = 428,633.78

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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.