Home / 1,198,684.60-1,654,234.92-689,387.32

Finding the Fourth Proportional to 1,198,684.60, 1,654,234.92 and 689,387.32

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Solution

The fourth proportional to 1,198,684.60, 1,654,234.92 and 689,387.32 is: 951,383.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,684.60 : 1,654,234.92 = 689,387.32 : x
  2. Step 2: Convert to fraction form
    1,198,684.60/1,654,234.92 = 689,387.32/x
  3. Step 3: Cross multiply
    1,198,684.60x = 1,654,234.92 × 689,387.32
  4. Step 4: Simplify right side
    1,198,684.60x = 1,140,408,578,149.21
  5. Step 5: Solve for x
    x = 1,140,408,578,149.21/1,198,684.60
  6. Step 6: Final answer
    x = 951,383.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.