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Finding the Fourth Proportional to 381,107.49, 524,608.34 and 329,401.03

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Solution

The fourth proportional to 381,107.49, 524,608.34 and 329,401.03 is: 453,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,107.49 : 524,608.34 = 329,401.03 : x
  2. Step 2: Convert to fraction form
    381,107.49/524,608.34 = 329,401.03/x
  3. Step 3: Cross multiply
    381,107.49x = 524,608.34 × 329,401.03
  4. Step 4: Simplify right side
    381,107.49x = 172,806,527,542.59
  5. Step 5: Solve for x
    x = 172,806,527,542.59/381,107.49
  6. Step 6: Final answer
    x = 453,432.51

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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.