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Finding the Fourth Proportional to 652,600.20, 978,608.70 and 253,108.20

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Solution

The fourth proportional to 652,600.20, 978,608.70 and 253,108.20 is: 379,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,600.20 : 978,608.70 = 253,108.20 : x
  2. Step 2: Convert to fraction form
    652,600.20/978,608.70 = 253,108.20/x
  3. Step 3: Cross multiply
    652,600.20x = 978,608.70 × 253,108.20
  4. Step 4: Simplify right side
    652,600.20x = 247,693,886,561.34
  5. Step 5: Solve for x
    x = 247,693,886,561.34/652,600.20
  6. Step 6: Final answer
    x = 379,549.20

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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.