Home / 858,832.20-1,288,248.30-839,149.20

Finding the Fourth Proportional to 858,832.20, 1,288,248.30 and 839,149.20

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Solution

The fourth proportional to 858,832.20, 1,288,248.30 and 839,149.20 is: 1,258,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,832.20 : 1,288,248.30 = 839,149.20 : x
  2. Step 2: Convert to fraction form
    858,832.20/1,288,248.30 = 839,149.20/x
  3. Step 3: Cross multiply
    858,832.20x = 1,288,248.30 × 839,149.20
  4. Step 4: Simplify right side
    858,832.20x = 1,081,032,530,346.36
  5. Step 5: Solve for x
    x = 1,081,032,530,346.36/858,832.20
  6. Step 6: Final answer
    x = 1,258,723.80

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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.