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Finding the Fourth Proportional to 418,572.48, 577,627 and 227,586

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Solution

The fourth proportional to 418,572.48, 577,627 and 227,586 is: 314,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,572.48 : 577,627 = 227,586 : x
  2. Step 2: Convert to fraction form
    418,572.48/577,627 = 227,586/x
  3. Step 3: Cross multiply
    418,572.48x = 577,627 × 227,586
  4. Step 4: Simplify right side
    418,572.48x = 131,459,818,422
  5. Step 5: Solve for x
    x = 131,459,818,422/418,572.48
  6. Step 6: Final answer
    x = 314,067.04

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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.