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Finding the Fourth Proportional to 418,410.24, 577,392 and 239,527.68

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Solution

The fourth proportional to 418,410.24, 577,392 and 239,527.68 is: 330,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,410.24 : 577,392 = 239,527.68 : x
  2. Step 2: Convert to fraction form
    418,410.24/577,392 = 239,527.68/x
  3. Step 3: Cross multiply
    418,410.24x = 577,392 × 239,527.68
  4. Step 4: Simplify right side
    418,410.24x = 138,301,366,210.56
  5. Step 5: Solve for x
    x = 138,301,366,210.56/418,410.24
  6. Step 6: Final answer
    x = 330,540.11

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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.