Home / 979,316.46-1,468,805.40-259,662.78

Finding the Fourth Proportional to 979,316.46, 1,468,805.40 and 259,662.78

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Solution

The fourth proportional to 979,316.46, 1,468,805.40 and 259,662.78 is: 389,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,316.46 : 1,468,805.40 = 259,662.78 : x
  2. Step 2: Convert to fraction form
    979,316.46/1,468,805.40 = 259,662.78/x
  3. Step 3: Cross multiply
    979,316.46x = 1,468,805.40 × 259,662.78
  4. Step 4: Simplify right side
    979,316.46x = 381,394,093,443.01
  5. Step 5: Solve for x
    x = 381,394,093,443.01/979,316.46
  6. Step 6: Final answer
    x = 389,449.28

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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.