Home / 990,651.60-1,482,040.80-858,994.20

Finding the Fourth Proportional to 990,651.60, 1,482,040.80 and 858,994.20

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Solution

The fourth proportional to 990,651.60, 1,482,040.80 and 858,994.20 is: 1,285,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,651.60 : 1,482,040.80 = 858,994.20 : x
  2. Step 2: Convert to fraction form
    990,651.60/1,482,040.80 = 858,994.20/x
  3. Step 3: Cross multiply
    990,651.60x = 1,482,040.80 × 858,994.20
  4. Step 4: Simplify right side
    990,651.60x = 1,273,064,451,363.36
  5. Step 5: Solve for x
    x = 1,273,064,451,363.36/990,651.60
  6. Step 6: Final answer
    x = 1,285,077.87

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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.