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Finding the Fourth Proportional to 902,662, 1,245,673.56 and 500,279.92

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Solution

The fourth proportional to 902,662, 1,245,673.56 and 500,279.92 is: 690,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,662 : 1,245,673.56 = 500,279.92 : x
  2. Step 2: Convert to fraction form
    902,662/1,245,673.56 = 500,279.92/x
  3. Step 3: Cross multiply
    902,662x = 1,245,673.56 × 500,279.92
  4. Step 4: Simplify right side
    902,662x = 623,185,468,942.92
  5. Step 5: Solve for x
    x = 623,185,468,942.92/902,662
  6. Step 6: Final answer
    x = 690,386.29

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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.