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Finding the Fourth Proportional to 508,560.62, 701,822.56 and 279,139.36

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Solution

The fourth proportional to 508,560.62, 701,822.56 and 279,139.36 is: 385,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,560.62 : 701,822.56 = 279,139.36 : x
  2. Step 2: Convert to fraction form
    508,560.62/701,822.56 = 279,139.36/x
  3. Step 3: Cross multiply
    508,560.62x = 701,822.56 × 279,139.36
  4. Step 4: Simplify right side
    508,560.62x = 195,906,300,231.96
  5. Step 5: Solve for x
    x = 195,906,300,231.96/508,560.62
  6. Step 6: Final answer
    x = 385,217.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.