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Finding the Fourth Proportional to 567.99, 855.42 and 503.79

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Solution

The fourth proportional to 567.99, 855.42 and 503.79 is: 758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.99 : 855.42 = 503.79 : x
  2. Step 2: Convert to fraction form
    567.99/855.42 = 503.79/x
  3. Step 3: Cross multiply
    567.99x = 855.42 × 503.79
  4. Step 4: Simplify right side
    567.99x = 430,952.04
  5. Step 5: Solve for x
    x = 430,952.04/567.99
  6. Step 6: Final answer
    x = 758.73

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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.