Home / 979,317.46-1,468,806.90-259,663.78

Finding the Fourth Proportional to 979,317.46, 1,468,806.90 and 259,663.78

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Solution

The fourth proportional to 979,317.46, 1,468,806.90 and 259,663.78 is: 389,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,317.46 : 1,468,806.90 = 259,663.78 : x
  2. Step 2: Convert to fraction form
    979,317.46/1,468,806.90 = 259,663.78/x
  3. Step 3: Cross multiply
    979,317.46x = 1,468,806.90 × 259,663.78
  4. Step 4: Simplify right side
    979,317.46x = 381,395,951,744.08
  5. Step 5: Solve for x
    x = 381,395,951,744.08/979,317.46
  6. Step 6: Final answer
    x = 389,450.78

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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.