Home / 1,278,101.52-1,915,181.52-628,932.48

Finding the Fourth Proportional to 1,278,101.52, 1,915,181.52 and 628,932.48

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Solution

The fourth proportional to 1,278,101.52, 1,915,181.52 and 628,932.48 is: 942,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,101.52 : 1,915,181.52 = 628,932.48 : x
  2. Step 2: Convert to fraction form
    1,278,101.52/1,915,181.52 = 628,932.48/x
  3. Step 3: Cross multiply
    1,278,101.52x = 1,915,181.52 × 628,932.48
  4. Step 4: Simplify right side
    1,278,101.52x = 1,204,519,863,023.77
  5. Step 5: Solve for x
    x = 1,204,519,863,023.77/1,278,101.52
  6. Step 6: Final answer
    x = 942,428.94

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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.