Home / 990,652.60-1,482,042.30-858,995.20

Finding the Fourth Proportional to 990,652.60, 1,482,042.30 and 858,995.20

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Solution

The fourth proportional to 990,652.60, 1,482,042.30 and 858,995.20 is: 1,285,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,652.60 : 1,482,042.30 = 858,995.20 : x
  2. Step 2: Convert to fraction form
    990,652.60/1,482,042.30 = 858,995.20/x
  3. Step 3: Cross multiply
    990,652.60x = 1,482,042.30 × 858,995.20
  4. Step 4: Simplify right side
    990,652.60x = 1,273,067,221,896.96
  5. Step 5: Solve for x
    x = 1,273,067,221,896.96/990,652.60
  6. Step 6: Final answer
    x = 1,285,079.37

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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.