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Finding the Fourth Proportional to 802,111.70, 1,203,123.26 and 269,577.74

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Solution

The fourth proportional to 802,111.70, 1,203,123.26 and 269,577.74 is: 404,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,111.70 : 1,203,123.26 = 269,577.74 : x
  2. Step 2: Convert to fraction form
    802,111.70/1,203,123.26 = 269,577.74/x
  3. Step 3: Cross multiply
    802,111.70x = 1,203,123.26 × 269,577.74
  4. Step 4: Simplify right side
    802,111.70x = 324,335,249,372.23
  5. Step 5: Solve for x
    x = 324,335,249,372.23/802,111.70
  6. Step 6: Final answer
    x = 404,351.72

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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.