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Finding the Fourth Proportional to 508,722.43, 763,099.94 and 255,864.91

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Solution

The fourth proportional to 508,722.43, 763,099.94 and 255,864.91 is: 383,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,722.43 : 763,099.94 = 255,864.91 : x
  2. Step 2: Convert to fraction form
    508,722.43/763,099.94 = 255,864.91/x
  3. Step 3: Cross multiply
    508,722.43x = 763,099.94 × 255,864.91
  4. Step 4: Simplify right side
    508,722.43x = 195,250,496,189.78
  5. Step 5: Solve for x
    x = 195,250,496,189.78/508,722.43
  6. Step 6: Final answer
    x = 383,805.56

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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.