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Finding the Fourth Proportional to 479,042.56, 718,719.36 and 229,744

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Solution

The fourth proportional to 479,042.56, 718,719.36 and 229,744 is: 344,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,042.56 : 718,719.36 = 229,744 : x
  2. Step 2: Convert to fraction form
    479,042.56/718,719.36 = 229,744/x
  3. Step 3: Cross multiply
    479,042.56x = 718,719.36 × 229,744
  4. Step 4: Simplify right side
    479,042.56x = 165,121,460,643.84
  5. Step 5: Solve for x
    x = 165,121,460,643.84/479,042.56
  6. Step 6: Final answer
    x = 344,690.59

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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.