Home / 3,172,358.79-4,377,860.69-1,722,055.21

Finding the Fourth Proportional to 3,172,358.79, 4,377,860.69 and 1,722,055.21

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Solution

The fourth proportional to 3,172,358.79, 4,377,860.69 and 1,722,055.21 is: 2,376,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,358.79 : 4,377,860.69 = 1,722,055.21 : x
  2. Step 2: Convert to fraction form
    3,172,358.79/4,377,860.69 = 1,722,055.21/x
  3. Step 3: Cross multiply
    3,172,358.79x = 4,377,860.69 × 1,722,055.21
  4. Step 4: Simplify right side
    3,172,358.79x = 7,538,917,807,469.78
  5. Step 5: Solve for x
    x = 7,538,917,807,469.78/3,172,358.79
  6. Step 6: Final answer
    x = 2,376,439.20

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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.