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Finding the Fourth Proportional to 652,260.40, 978,560.70 and 252,914.20

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Solution

The fourth proportional to 652,260.40, 978,560.70 and 252,914.20 is: 379,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,260.40 : 978,560.70 = 252,914.20 : x
  2. Step 2: Convert to fraction form
    652,260.40/978,560.70 = 252,914.20/x
  3. Step 3: Cross multiply
    652,260.40x = 978,560.70 × 252,914.20
  4. Step 4: Simplify right side
    652,260.40x = 247,491,896,591.94
  5. Step 5: Solve for x
    x = 247,491,896,591.94/652,260.40
  6. Step 6: Final answer
    x = 379,437.26

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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.