Home / 469,167.42-647,435.25-278,067.36

Finding the Fourth Proportional to 469,167.42, 647,435.25 and 278,067.36

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Solution

The fourth proportional to 469,167.42, 647,435.25 and 278,067.36 is: 383,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,167.42 : 647,435.25 = 278,067.36 : x
  2. Step 2: Convert to fraction form
    469,167.42/647,435.25 = 278,067.36/x
  3. Step 3: Cross multiply
    469,167.42x = 647,435.25 × 278,067.36
  4. Step 4: Simplify right side
    469,167.42x = 180,030,610,738.44
  5. Step 5: Solve for x
    x = 180,030,610,738.44/469,167.42
  6. Step 6: Final answer
    x = 383,723.60

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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.