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Finding the Fourth Proportional to 560.79, 773.93 and 324.79

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Solution

The fourth proportional to 560.79, 773.93 and 324.79 is: 448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.79 : 773.93 = 324.79 : x
  2. Step 2: Convert to fraction form
    560.79/773.93 = 324.79/x
  3. Step 3: Cross multiply
    560.79x = 773.93 × 324.79
  4. Step 4: Simplify right side
    560.79x = 251,363.60
  5. Step 5: Solve for x
    x = 251,363.60/560.79
  6. Step 6: Final answer
    x = 448.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.