Home / 1,198,645.92-1,654,181.65-689,348.70

Finding the Fourth Proportional to 1,198,645.92, 1,654,181.65 and 689,348.70

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Solution

The fourth proportional to 1,198,645.92, 1,654,181.65 and 689,348.70 is: 951,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,645.92 : 1,654,181.65 = 689,348.70 : x
  2. Step 2: Convert to fraction form
    1,198,645.92/1,654,181.65 = 689,348.70/x
  3. Step 3: Cross multiply
    1,198,645.92x = 1,654,181.65 × 689,348.70
  4. Step 4: Simplify right side
    1,198,645.92x = 1,140,307,969,991.36
  5. Step 5: Solve for x
    x = 1,140,307,969,991.36/1,198,645.92
  6. Step 6: Final answer
    x = 951,330.12

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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.