Home / 448,680.91-671,441.58-280,280.54

Finding the Fourth Proportional to 448,680.91, 671,441.58 and 280,280.54

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Solution

The fourth proportional to 448,680.91, 671,441.58 and 280,280.54 is: 419,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,680.91 : 671,441.58 = 280,280.54 : x
  2. Step 2: Convert to fraction form
    448,680.91/671,441.58 = 280,280.54/x
  3. Step 3: Cross multiply
    448,680.91x = 671,441.58 × 280,280.54
  4. Step 4: Simplify right side
    448,680.91x = 188,192,008,620.85
  5. Step 5: Solve for x
    x = 188,192,008,620.85/448,680.91
  6. Step 6: Final answer
    x = 419,433.96

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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.