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Finding the Fourth Proportional to 418,571.55, 577,612.82 and 227,585.09

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Solution

The fourth proportional to 418,571.55, 577,612.82 and 227,585.09 is: 314,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,571.55 : 577,612.82 = 227,585.09 : x
  2. Step 2: Convert to fraction form
    418,571.55/577,612.82 = 227,585.09/x
  3. Step 3: Cross multiply
    418,571.55x = 577,612.82 × 227,585.09
  4. Step 4: Simplify right side
    418,571.55x = 131,456,067,637.85
  5. Step 5: Solve for x
    x = 131,456,067,637.85/418,571.55
  6. Step 6: Final answer
    x = 314,058.77

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1.5x scale

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.