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Finding the Fourth Proportional to 514.37, 776.22 and 487.91

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Solution

The fourth proportional to 514.37, 776.22 and 487.91 is: 736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.37 : 776.22 = 487.91 : x
  2. Step 2: Convert to fraction form
    514.37/776.22 = 487.91/x
  3. Step 3: Cross multiply
    514.37x = 776.22 × 487.91
  4. Step 4: Simplify right side
    514.37x = 378,721.62
  5. Step 5: Solve for x
    x = 378,721.62/514.37
  6. Step 6: Final answer
    x = 736.29

Related Problems

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.