Home / 2,297,719.80-3,168,789.12-1,438,358.40

Finding the Fourth Proportional to 2,297,719.80, 3,168,789.12 and 1,438,358.40

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Solution

The fourth proportional to 2,297,719.80, 3,168,789.12 and 1,438,358.40 is: 1,983,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297,719.80 : 3,168,789.12 = 1,438,358.40 : x
  2. Step 2: Convert to fraction form
    2,297,719.80/3,168,789.12 = 1,438,358.40/x
  3. Step 3: Cross multiply
    2,297,719.80x = 3,168,789.12 × 1,438,358.40
  4. Step 4: Simplify right side
    2,297,719.80x = 4,557,854,448,580.61
  5. Step 5: Solve for x
    x = 4,557,854,448,580.61/2,297,719.80
  6. Step 6: Final answer
    x = 1,983,642.41

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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.