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Finding the Fourth Proportional to 508,401.92, 701,571.17 and 278,953.49

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Solution

The fourth proportional to 508,401.92, 701,571.17 and 278,953.49 is: 384,942.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,401.92 : 701,571.17 = 278,953.49 : x
  2. Step 2: Convert to fraction form
    508,401.92/701,571.17 = 278,953.49/x
  3. Step 3: Cross multiply
    508,401.92x = 701,571.17 × 278,953.49
  4. Step 4: Simplify right side
    508,401.92x = 195,705,728,806.20
  5. Step 5: Solve for x
    x = 195,705,728,806.20/508,401.92
  6. Step 6: Final answer
    x = 384,942.94

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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.