Home / 6,439,728.80-9,659,923.96-1,647,459.38

Finding the Fourth Proportional to 6,439,728.80, 9,659,923.96 and 1,647,459.38

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Solution

The fourth proportional to 6,439,728.80, 9,659,923.96 and 1,647,459.38 is: 2,471,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,728.80 : 9,659,923.96 = 1,647,459.38 : x
  2. Step 2: Convert to fraction form
    6,439,728.80/9,659,923.96 = 1,647,459.38/x
  3. Step 3: Cross multiply
    6,439,728.80x = 9,659,923.96 × 1,647,459.38
  4. Step 4: Simplify right side
    6,439,728.80x = 15,914,332,337,988.75
  5. Step 5: Solve for x
    x = 15,914,332,337,988.75/6,439,728.80
  6. Step 6: Final answer
    x = 2,471,273.69

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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.