Home / 3,878,325-5,818,117.86-1,146,149.64

Finding the Fourth Proportional to 3,878,325, 5,818,117.86 and 1,146,149.64

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Solution

The fourth proportional to 3,878,325, 5,818,117.86 and 1,146,149.64 is: 1,719,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,325 : 5,818,117.86 = 1,146,149.64 : x
  2. Step 2: Convert to fraction form
    3,878,325/5,818,117.86 = 1,146,149.64/x
  3. Step 3: Cross multiply
    3,878,325x = 5,818,117.86 × 1,146,149.64
  4. Step 4: Simplify right side
    3,878,325x = 6,668,433,690,716.57
  5. Step 5: Solve for x
    x = 6,668,433,690,716.57/3,878,325
  6. Step 6: Final answer
    x = 1,719,410.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.