Home / 877,067.20-1,315,693.92-278,113.60

Finding the Fourth Proportional to 877,067.20, 1,315,693.92 and 278,113.60

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Solution

The fourth proportional to 877,067.20, 1,315,693.92 and 278,113.60 is: 417,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,067.20 : 1,315,693.92 = 278,113.60 : x
  2. Step 2: Convert to fraction form
    877,067.20/1,315,693.92 = 278,113.60/x
  3. Step 3: Cross multiply
    877,067.20x = 1,315,693.92 × 278,113.60
  4. Step 4: Simplify right side
    877,067.20x = 365,912,372,589.31
  5. Step 5: Solve for x
    x = 365,912,372,589.31/877,067.20
  6. Step 6: Final answer
    x = 417,199.93

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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.