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Finding the Fourth Proportional to 563.82, 773.94 and 520.08

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Solution

The fourth proportional to 563.82, 773.94 and 520.08 is: 713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.82 : 773.94 = 520.08 : x
  2. Step 2: Convert to fraction form
    563.82/773.94 = 520.08/x
  3. Step 3: Cross multiply
    563.82x = 773.94 × 520.08
  4. Step 4: Simplify right side
    563.82x = 402,510.72
  5. Step 5: Solve for x
    x = 402,510.72/563.82
  6. Step 6: Final answer
    x = 713.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.