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Finding the Fourth Proportional to 510.43, 764.40 and 506.77

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Solution

The fourth proportional to 510.43, 764.40 and 506.77 is: 758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.43 : 764.40 = 506.77 : x
  2. Step 2: Convert to fraction form
    510.43/764.40 = 506.77/x
  3. Step 3: Cross multiply
    510.43x = 764.40 × 506.77
  4. Step 4: Simplify right side
    510.43x = 387,374.99
  5. Step 5: Solve for x
    x = 387,374.99/510.43
  6. Step 6: Final answer
    x = 758.92

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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.