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Finding the Fourth Proportional to 479,046.56, 718,725.36 and 229,748

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Solution

The fourth proportional to 479,046.56, 718,725.36 and 229,748 is: 344,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,046.56 : 718,725.36 = 229,748 : x
  2. Step 2: Convert to fraction form
    479,046.56/718,725.36 = 229,748/x
  3. Step 3: Cross multiply
    479,046.56x = 718,725.36 × 229,748
  4. Step 4: Simplify right side
    479,046.56x = 165,125,714,009.28
  5. Step 5: Solve for x
    x = 165,125,714,009.28/479,046.56
  6. Step 6: Final answer
    x = 344,696.59

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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.