Home / 2,253,005.28-3,109,028.40-1,286,097.12

Finding the Fourth Proportional to 2,253,005.28, 3,109,028.40 and 1,286,097.12

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Solution

The fourth proportional to 2,253,005.28, 3,109,028.40 and 1,286,097.12 is: 1,774,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253,005.28 : 3,109,028.40 = 1,286,097.12 : x
  2. Step 2: Convert to fraction form
    2,253,005.28/3,109,028.40 = 1,286,097.12/x
  3. Step 3: Cross multiply
    2,253,005.28x = 3,109,028.40 × 1,286,097.12
  4. Step 4: Simplify right side
    2,253,005.28x = 3,998,512,471,238.21
  5. Step 5: Solve for x
    x = 3,998,512,471,238.21/2,253,005.28
  6. Step 6: Final answer
    x = 1,774,746.16

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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.