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Finding the Fourth Proportional to 633,888.08, 951,139.67 and 278,855.97

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Solution

The fourth proportional to 633,888.08, 951,139.67 and 278,855.97 is: 418,419.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,888.08 : 951,139.67 = 278,855.97 : x
  2. Step 2: Convert to fraction form
    633,888.08/951,139.67 = 278,855.97/x
  3. Step 3: Cross multiply
    633,888.08x = 951,139.67 × 278,855.97
  4. Step 4: Simplify right side
    633,888.08x = 265,230,970,322.28
  5. Step 5: Solve for x
    x = 265,230,970,322.28/633,888.08
  6. Step 6: Final answer
    x = 418,419.24

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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.