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Finding the Fourth Proportional to 1,224.88, 1,836.93 and 402.96

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Solution

The fourth proportional to 1,224.88, 1,836.93 and 402.96 is: 604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.88 : 1,836.93 = 402.96 : x
  2. Step 2: Convert to fraction form
    1,224.88/1,836.93 = 402.96/x
  3. Step 3: Cross multiply
    1,224.88x = 1,836.93 × 402.96
  4. Step 4: Simplify right side
    1,224.88x = 740,211.89
  5. Step 5: Solve for x
    x = 740,211.89/1,224.88
  6. Step 6: Final answer
    x = 604.31

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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.