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Finding the Fourth Proportional to 802,936.89, 1,108,052.88 and 445,240.89

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Solution

The fourth proportional to 802,936.89, 1,108,052.88 and 445,240.89 is: 614,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,936.89 : 1,108,052.88 = 445,240.89 : x
  2. Step 2: Convert to fraction form
    802,936.89/1,108,052.88 = 445,240.89/x
  3. Step 3: Cross multiply
    802,936.89x = 1,108,052.88 × 445,240.89
  4. Step 4: Simplify right side
    802,936.89x = 493,350,450,458.26
  5. Step 5: Solve for x
    x = 493,350,450,458.26/802,936.89
  6. Step 6: Final answer
    x = 614,432.41

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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.