Home / 678,530.20-1,016,245.14-323,793.40

Finding the Fourth Proportional to 678,530.20, 1,016,245.14 and 323,793.40

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Solution

The fourth proportional to 678,530.20, 1,016,245.14 and 323,793.40 is: 484,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,530.20 : 1,016,245.14 = 323,793.40 : x
  2. Step 2: Convert to fraction form
    678,530.20/1,016,245.14 = 323,793.40/x
  3. Step 3: Cross multiply
    678,530.20x = 1,016,245.14 × 323,793.40
  4. Step 4: Simplify right side
    678,530.20x = 329,053,469,114.08
  5. Step 5: Solve for x
    x = 329,053,469,114.08/678,530.20
  6. Step 6: Final answer
    x = 484,950.37

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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.