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Finding the Fourth Proportional to 508,575.36, 701,835.42 and 279,134.52

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Solution

The fourth proportional to 508,575.36, 701,835.42 and 279,134.52 is: 385,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,575.36 : 701,835.42 = 279,134.52 : x
  2. Step 2: Convert to fraction form
    508,575.36/701,835.42 = 279,134.52/x
  3. Step 3: Cross multiply
    508,575.36x = 701,835.42 × 279,134.52
  4. Step 4: Simplify right side
    508,575.36x = 195,906,493,080.70
  5. Step 5: Solve for x
    x = 195,906,493,080.70/508,575.36
  6. Step 6: Final answer
    x = 385,206.42

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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.