Home / 678,517.23-1,016,225.70-323,780.37

Finding the Fourth Proportional to 678,517.23, 1,016,225.70 and 323,780.37

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Solution

The fourth proportional to 678,517.23, 1,016,225.70 and 323,780.37 is: 484,930.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,517.23 : 1,016,225.70 = 323,780.37 : x
  2. Step 2: Convert to fraction form
    678,517.23/1,016,225.70 = 323,780.37/x
  3. Step 3: Cross multiply
    678,517.23x = 1,016,225.70 × 323,780.37
  4. Step 4: Simplify right side
    678,517.23x = 329,033,933,149.51
  5. Step 5: Solve for x
    x = 329,033,933,149.51/678,517.23
  6. Step 6: Final answer
    x = 484,930.84

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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.