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Finding the Fourth Proportional to 652,237.40, 978,526.20 and 252,891.20

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Solution

The fourth proportional to 652,237.40, 978,526.20 and 252,891.20 is: 379,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,237.40 : 978,526.20 = 252,891.20 : x
  2. Step 2: Convert to fraction form
    652,237.40/978,526.20 = 252,891.20/x
  3. Step 3: Cross multiply
    652,237.40x = 978,526.20 × 252,891.20
  4. Step 4: Simplify right side
    652,237.40x = 247,460,664,949.44
  5. Step 5: Solve for x
    x = 247,460,664,949.44/652,237.40
  6. Step 6: Final answer
    x = 379,402.75

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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.