Home / 811,982.28-1,120,527.22-449,406.84

Finding the Fourth Proportional to 811,982.28, 1,120,527.22 and 449,406.84

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Solution

The fourth proportional to 811,982.28, 1,120,527.22 and 449,406.84 is: 620,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,982.28 : 1,120,527.22 = 449,406.84 : x
  2. Step 2: Convert to fraction form
    811,982.28/1,120,527.22 = 449,406.84/x
  3. Step 3: Cross multiply
    811,982.28x = 1,120,527.22 × 449,406.84
  4. Step 4: Simplify right side
    811,982.28x = 503,572,597,074.19
  5. Step 5: Solve for x
    x = 503,572,597,074.19/811,982.28
  6. Step 6: Final answer
    x = 620,176.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.