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Finding the Fourth Proportional to 453,899, 680,787.21 and 187,622.57

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Solution

The fourth proportional to 453,899, 680,787.21 and 187,622.57 is: 281,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,899 : 680,787.21 = 187,622.57 : x
  2. Step 2: Convert to fraction form
    453,899/680,787.21 = 187,622.57/x
  3. Step 3: Cross multiply
    453,899x = 680,787.21 × 187,622.57
  4. Step 4: Simplify right side
    453,899x = 127,731,045,963.33
  5. Step 5: Solve for x
    x = 127,731,045,963.33/453,899
  6. Step 6: Final answer
    x = 281,408.52

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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.