Home / 839,847.70-1,259,771.55-460,621.90

Finding the Fourth Proportional to 839,847.70, 1,259,771.55 and 460,621.90

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Solution

The fourth proportional to 839,847.70, 1,259,771.55 and 460,621.90 is: 690,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,847.70 : 1,259,771.55 = 460,621.90 : x
  2. Step 2: Convert to fraction form
    839,847.70/1,259,771.55 = 460,621.90/x
  3. Step 3: Cross multiply
    839,847.70x = 1,259,771.55 × 460,621.90
  4. Step 4: Simplify right side
    839,847.70x = 580,278,364,926.95
  5. Step 5: Solve for x
    x = 580,278,364,926.95/839,847.70
  6. Step 6: Final answer
    x = 690,932.85

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Similar ratio
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1.5x scale

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.