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Finding the Fourth Proportional to 523,093.52, 721,922.28 and 308,302.88

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Solution

The fourth proportional to 523,093.52, 721,922.28 and 308,302.88 is: 425,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,093.52 : 721,922.28 = 308,302.88 : x
  2. Step 2: Convert to fraction form
    523,093.52/721,922.28 = 308,302.88/x
  3. Step 3: Cross multiply
    523,093.52x = 721,922.28 × 308,302.88
  4. Step 4: Simplify right side
    523,093.52x = 222,570,718,060.17
  5. Step 5: Solve for x
    x = 222,570,718,060.17/523,093.52
  6. Step 6: Final answer
    x = 425,489.34

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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.