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Finding the Fourth Proportional to 514.37, 767.85 and 477.92

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Solution

The fourth proportional to 514.37, 767.85 and 477.92 is: 713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.37 : 767.85 = 477.92 : x
  2. Step 2: Convert to fraction form
    514.37/767.85 = 477.92/x
  3. Step 3: Cross multiply
    514.37x = 767.85 × 477.92
  4. Step 4: Simplify right side
    514.37x = 366,970.87
  5. Step 5: Solve for x
    x = 366,970.87/514.37
  6. Step 6: Final answer
    x = 713.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.