Home / 678,515.24-1,016,222.71-323,778.38

Finding the Fourth Proportional to 678,515.24, 1,016,222.71 and 323,778.38

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Solution

The fourth proportional to 678,515.24, 1,016,222.71 and 323,778.38 is: 484,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,515.24 : 1,016,222.71 = 323,778.38 : x
  2. Step 2: Convert to fraction form
    678,515.24/1,016,222.71 = 323,778.38/x
  3. Step 3: Cross multiply
    678,515.24x = 1,016,222.71 × 323,778.38
  4. Step 4: Simplify right side
    678,515.24x = 329,030,942,763.01
  5. Step 5: Solve for x
    x = 329,030,942,763.01/678,515.24
  6. Step 6: Final answer
    x = 484,927.86

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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.