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Finding the Fourth Proportional to 652,405.52, 978,456.36 and 179,128.88

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Solution

The fourth proportional to 652,405.52, 978,456.36 and 179,128.88 is: 268,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,405.52 : 978,456.36 = 179,128.88 : x
  2. Step 2: Convert to fraction form
    652,405.52/978,456.36 = 179,128.88/x
  3. Step 3: Cross multiply
    652,405.52x = 978,456.36 × 179,128.88
  4. Step 4: Simplify right side
    652,405.52x = 175,269,791,895.68
  5. Step 5: Solve for x
    x = 175,269,791,895.68/652,405.52
  6. Step 6: Final answer
    x = 268,651.61

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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.