Home / 2,139,579.92-2,952,691.70-1,172,712.69

Finding the Fourth Proportional to 2,139,579.92, 2,952,691.70 and 1,172,712.69

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Solution

The fourth proportional to 2,139,579.92, 2,952,691.70 and 1,172,712.69 is: 1,618,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,579.92 : 2,952,691.70 = 1,172,712.69 : x
  2. Step 2: Convert to fraction form
    2,139,579.92/2,952,691.70 = 1,172,712.69/x
  3. Step 3: Cross multiply
    2,139,579.92x = 2,952,691.70 × 1,172,712.69
  4. Step 4: Simplify right side
    2,139,579.92x = 3,462,659,020,384.11
  5. Step 5: Solve for x
    x = 3,462,659,020,384.11/2,139,579.92
  6. Step 6: Final answer
    x = 1,618,382.65

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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.