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Finding the Fourth Proportional to 502,974.90, 694,104.93 and 276,620.40

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Solution

The fourth proportional to 502,974.90, 694,104.93 and 276,620.40 is: 381,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,974.90 : 694,104.93 = 276,620.40 : x
  2. Step 2: Convert to fraction form
    502,974.90/694,104.93 = 276,620.40/x
  3. Step 3: Cross multiply
    502,974.90x = 694,104.93 × 276,620.40
  4. Step 4: Simplify right side
    502,974.90x = 192,003,583,378.57
  5. Step 5: Solve for x
    x = 192,003,583,378.57/502,974.90
  6. Step 6: Final answer
    x = 381,735.91

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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.