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Finding the Fourth Proportional to 644,082.84, 888,874.56 and 372,200.67

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Solution

The fourth proportional to 644,082.84, 888,874.56 and 372,200.67 is: 513,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,082.84 : 888,874.56 = 372,200.67 : x
  2. Step 2: Convert to fraction form
    644,082.84/888,874.56 = 372,200.67/x
  3. Step 3: Cross multiply
    644,082.84x = 888,874.56 × 372,200.67
  4. Step 4: Simplify right side
    644,082.84x = 330,839,706,777.96
  5. Step 5: Solve for x
    x = 330,839,706,777.96/644,082.84
  6. Step 6: Final answer
    x = 513,660.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.