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Finding the Fourth Proportional to 453,907.21, 680,861 and 453,251.29

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Solution

The fourth proportional to 453,907.21, 680,861 and 453,251.29 is: 679,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,907.21 : 680,861 = 453,251.29 : x
  2. Step 2: Convert to fraction form
    453,907.21/680,861 = 453,251.29/x
  3. Step 3: Cross multiply
    453,907.21x = 680,861 × 453,251.29
  4. Step 4: Simplify right side
    453,907.21x = 308,601,126,560.69
  5. Step 5: Solve for x
    x = 308,601,126,560.69/453,907.21
  6. Step 6: Final answer
    x = 679,877.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.