Home / 817,642.64-1,226,469.54-312,067.28

Finding the Fourth Proportional to 817,642.64, 1,226,469.54 and 312,067.28

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Solution

The fourth proportional to 817,642.64, 1,226,469.54 and 312,067.28 is: 468,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,642.64 : 1,226,469.54 = 312,067.28 : x
  2. Step 2: Convert to fraction form
    817,642.64/1,226,469.54 = 312,067.28/x
  3. Step 3: Cross multiply
    817,642.64x = 1,226,469.54 × 312,067.28
  4. Step 4: Simplify right side
    817,642.64x = 382,741,013,350.65
  5. Step 5: Solve for x
    x = 382,741,013,350.65/817,642.64
  6. Step 6: Final answer
    x = 468,103.05

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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.