Home / 2,657,421.90-3,986,716.05-1,310,229.90

Finding the Fourth Proportional to 2,657,421.90, 3,986,716.05 and 1,310,229.90

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Solution

The fourth proportional to 2,657,421.90, 3,986,716.05 and 1,310,229.90 is: 1,965,632.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,421.90 : 3,986,716.05 = 1,310,229.90 : x
  2. Step 2: Convert to fraction form
    2,657,421.90/3,986,716.05 = 1,310,229.90/x
  3. Step 3: Cross multiply
    2,657,421.90x = 3,986,716.05 × 1,310,229.90
  4. Step 4: Simplify right side
    2,657,421.90x = 5,223,514,571,519.89
  5. Step 5: Solve for x
    x = 5,223,514,571,519.89/2,657,421.90
  6. Step 6: Final answer
    x = 1,965,632.39

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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.