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Finding the Fourth Proportional to 508,239.86, 701,372.09 and 278,799.03

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Solution

The fourth proportional to 508,239.86, 701,372.09 and 278,799.03 is: 384,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,239.86 : 701,372.09 = 278,799.03 : x
  2. Step 2: Convert to fraction form
    508,239.86/701,372.09 = 278,799.03/x
  3. Step 3: Cross multiply
    508,239.86x = 701,372.09 × 278,799.03
  4. Step 4: Simplify right side
    508,239.86x = 195,541,854,934.29
  5. Step 5: Solve for x
    x = 195,541,854,934.29/508,239.86
  6. Step 6: Final answer
    x = 384,743.25

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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.