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Finding the Fourth Proportional to 652,637.20, 978,178.20 and 273,557.20

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Solution

The fourth proportional to 652,637.20, 978,178.20 and 273,557.20 is: 410,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,637.20 : 978,178.20 = 273,557.20 : x
  2. Step 2: Convert to fraction form
    652,637.20/978,178.20 = 273,557.20/x
  3. Step 3: Cross multiply
    652,637.20x = 978,178.20 × 273,557.20
  4. Step 4: Simplify right side
    652,637.20x = 267,587,689,493.04
  5. Step 5: Solve for x
    x = 267,587,689,493.04/652,637.20
  6. Step 6: Final answer
    x = 410,009.86

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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.