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Finding the Fourth Proportional to 508,722.75, 763,100.41 and 255,865.23

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Solution

The fourth proportional to 508,722.75, 763,100.41 and 255,865.23 is: 383,806.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,722.75 : 763,100.41 = 255,865.23 : x
  2. Step 2: Convert to fraction form
    508,722.75/763,100.41 = 255,865.23/x
  3. Step 3: Cross multiply
    508,722.75x = 763,100.41 × 255,865.23
  4. Step 4: Simplify right side
    508,722.75x = 195,250,856,822.92
  5. Step 5: Solve for x
    x = 195,250,856,822.92/508,722.75
  6. Step 6: Final answer
    x = 383,806.03

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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.