Home / 850,728.20-1,276,290.74-282,067.70

Finding the Fourth Proportional to 850,728.20, 1,276,290.74 and 282,067.70

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Solution

The fourth proportional to 850,728.20, 1,276,290.74 and 282,067.70 is: 423,167.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,728.20 : 1,276,290.74 = 282,067.70 : x
  2. Step 2: Convert to fraction form
    850,728.20/1,276,290.74 = 282,067.70/x
  3. Step 3: Cross multiply
    850,728.20x = 1,276,290.74 × 282,067.70
  4. Step 4: Simplify right side
    850,728.20x = 360,000,393,563.10
  5. Step 5: Solve for x
    x = 360,000,393,563.10/850,728.20
  6. Step 6: Final answer
    x = 423,167.34

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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.