Home / 678,912.96-1,016,818.16-324,175.44

Finding the Fourth Proportional to 678,912.96, 1,016,818.16 and 324,175.44

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Solution

The fourth proportional to 678,912.96, 1,016,818.16 and 324,175.44 is: 485,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,912.96 : 1,016,818.16 = 324,175.44 : x
  2. Step 2: Convert to fraction form
    678,912.96/1,016,818.16 = 324,175.44/x
  3. Step 3: Cross multiply
    678,912.96x = 1,016,818.16 × 324,175.44
  4. Step 4: Simplify right side
    678,912.96x = 329,627,474,417.99
  5. Step 5: Solve for x
    x = 329,627,474,417.99/678,912.96
  6. Step 6: Final answer
    x = 485,522.44

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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.