Home / 2,658,857.67-3,987,449.91-861,324.08

Finding the Fourth Proportional to 2,658,857.67, 3,987,449.91 and 861,324.08

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Solution

The fourth proportional to 2,658,857.67, 3,987,449.91 and 861,324.08 is: 1,291,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,857.67 : 3,987,449.91 = 861,324.08 : x
  2. Step 2: Convert to fraction form
    2,658,857.67/3,987,449.91 = 861,324.08/x
  3. Step 3: Cross multiply
    2,658,857.67x = 3,987,449.91 × 861,324.08
  4. Step 4: Simplify right side
    2,658,857.67x = 3,434,486,605,339.58
  5. Step 5: Solve for x
    x = 3,434,486,605,339.58/2,658,857.67
  6. Step 6: Final answer
    x = 1,291,715.10

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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.