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Finding the Fourth Proportional to 652,129.12, 978,340.92 and 231,405.04

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Solution

The fourth proportional to 652,129.12, 978,340.92 and 231,405.04 is: 347,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,129.12 : 978,340.92 = 231,405.04 : x
  2. Step 2: Convert to fraction form
    652,129.12/978,340.92 = 231,405.04/x
  3. Step 3: Cross multiply
    652,129.12x = 978,340.92 × 231,405.04
  4. Step 4: Simplify right side
    652,129.12x = 226,393,019,726.24
  5. Step 5: Solve for x
    x = 226,393,019,726.24/652,129.12
  6. Step 6: Final answer
    x = 347,159.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.