Home / 990,738.60-1,482,171.30-859,081.20

Finding the Fourth Proportional to 990,738.60, 1,482,171.30 and 859,081.20

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Solution

The fourth proportional to 990,738.60, 1,482,171.30 and 859,081.20 is: 1,285,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,738.60 : 1,482,171.30 = 859,081.20 : x
  2. Step 2: Convert to fraction form
    990,738.60/1,482,171.30 = 859,081.20/x
  3. Step 3: Cross multiply
    990,738.60x = 1,482,171.30 × 859,081.20
  4. Step 4: Simplify right side
    990,738.60x = 1,273,305,499,009.56
  5. Step 5: Solve for x
    x = 1,273,305,499,009.56/990,738.60
  6. Step 6: Final answer
    x = 1,285,208.33

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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.