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Finding the Fourth Proportional to 635,438.40, 951,705.92 and 303,247.68

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Solution

The fourth proportional to 635,438.40, 951,705.92 and 303,247.68 is: 454,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,438.40 : 951,705.92 = 303,247.68 : x
  2. Step 2: Convert to fraction form
    635,438.40/951,705.92 = 303,247.68/x
  3. Step 3: Cross multiply
    635,438.40x = 951,705.92 × 303,247.68
  4. Step 4: Simplify right side
    635,438.40x = 288,602,612,282.27
  5. Step 5: Solve for x
    x = 288,602,612,282.27/635,438.40
  6. Step 6: Final answer
    x = 454,178.74

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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.