Home / 1,998,078.40-2,757,600.72-1,310,329

Finding the Fourth Proportional to 1,998,078.40, 2,757,600.72 and 1,310,329

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Solution

The fourth proportional to 1,998,078.40, 2,757,600.72 and 1,310,329 is: 1,808,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,078.40 : 2,757,600.72 = 1,310,329 : x
  2. Step 2: Convert to fraction form
    1,998,078.40/2,757,600.72 = 1,310,329/x
  3. Step 3: Cross multiply
    1,998,078.40x = 2,757,600.72 × 1,310,329
  4. Step 4: Simplify right side
    1,998,078.40x = 3,613,364,193,836.88
  5. Step 5: Solve for x
    x = 3,613,364,193,836.88/1,998,078.40
  6. Step 6: Final answer
    x = 1,808,419.63

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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.