Home / 859,132.20-1,288,698.30-839,449.20

Finding the Fourth Proportional to 859,132.20, 1,288,698.30 and 839,449.20

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Solution

The fourth proportional to 859,132.20, 1,288,698.30 and 839,449.20 is: 1,259,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,132.20 : 1,288,698.30 = 839,449.20 : x
  2. Step 2: Convert to fraction form
    859,132.20/1,288,698.30 = 839,449.20/x
  3. Step 3: Cross multiply
    859,132.20x = 1,288,698.30 × 839,449.20
  4. Step 4: Simplify right side
    859,132.20x = 1,081,796,756,976.36
  5. Step 5: Solve for x
    x = 1,081,796,756,976.36/859,132.20
  6. Step 6: Final answer
    x = 1,259,173.80

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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.