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Finding the Fourth Proportional to 523,764.18, 722,759.49 and 308,894.58

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Solution

The fourth proportional to 523,764.18, 722,759.49 and 308,894.58 is: 426,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,764.18 : 722,759.49 = 308,894.58 : x
  2. Step 2: Convert to fraction form
    523,764.18/722,759.49 = 308,894.58/x
  3. Step 3: Cross multiply
    523,764.18x = 722,759.49 × 308,894.58
  4. Step 4: Simplify right side
    523,764.18x = 223,256,489,104.56
  5. Step 5: Solve for x
    x = 223,256,489,104.56/523,764.18
  6. Step 6: Final answer
    x = 426,253.83

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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.