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Finding the Fourth Proportional to 652,701.20, 978,760.20 and 253,209.20

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Solution

The fourth proportional to 652,701.20, 978,760.20 and 253,209.20 is: 379,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,701.20 : 978,760.20 = 253,209.20 : x
  2. Step 2: Convert to fraction form
    652,701.20/978,760.20 = 253,209.20/x
  3. Step 3: Cross multiply
    652,701.20x = 978,760.20 × 253,209.20
  4. Step 4: Simplify right side
    652,701.20x = 247,831,087,233.84
  5. Step 5: Solve for x
    x = 247,831,087,233.84/652,701.20
  6. Step 6: Final answer
    x = 379,700.68

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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.