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Finding the Fourth Proportional to 666,635.84, 1,000,147.42 and 240,163.55

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Solution

The fourth proportional to 666,635.84, 1,000,147.42 and 240,163.55 is: 360,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,635.84 : 1,000,147.42 = 240,163.55 : x
  2. Step 2: Convert to fraction form
    666,635.84/1,000,147.42 = 240,163.55/x
  3. Step 3: Cross multiply
    666,635.84x = 1,000,147.42 × 240,163.55
  4. Step 4: Simplify right side
    666,635.84x = 240,198,954,910.54
  5. Step 5: Solve for x
    x = 240,198,954,910.54/666,635.84
  6. Step 6: Final answer
    x = 360,315.09

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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.