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Finding the Fourth Proportional to 650,809.40, 976,359.90 and 251,414.60

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Solution

The fourth proportional to 650,809.40, 976,359.90 and 251,414.60 is: 377,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,809.40 : 976,359.90 = 251,414.60 : x
  2. Step 2: Convert to fraction form
    650,809.40/976,359.90 = 251,414.60/x
  3. Step 3: Cross multiply
    650,809.40x = 976,359.90 × 251,414.60
  4. Step 4: Simplify right side
    650,809.40x = 245,471,133,714.54
  5. Step 5: Solve for x
    x = 245,471,133,714.54/650,809.40
  6. Step 6: Final answer
    x = 377,178.22

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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.