Home / 712,181.94-982,811.01-389,891.04

Finding the Fourth Proportional to 712,181.94, 982,811.01 and 389,891.04

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Solution

The fourth proportional to 712,181.94, 982,811.01 and 389,891.04 is: 538,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,181.94 : 982,811.01 = 389,891.04 : x
  2. Step 2: Convert to fraction form
    712,181.94/982,811.01 = 389,891.04/x
  3. Step 3: Cross multiply
    712,181.94x = 982,811.01 × 389,891.04
  4. Step 4: Simplify right side
    712,181.94x = 383,189,206,812.35
  5. Step 5: Solve for x
    x = 383,189,206,812.35/712,181.94
  6. Step 6: Final answer
    x = 538,049.60

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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.