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Finding the Fourth Proportional to 560.69, 773.85 and 324.79

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Solution

The fourth proportional to 560.69, 773.85 and 324.79 is: 448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.69 : 773.85 = 324.79 : x
  2. Step 2: Convert to fraction form
    560.69/773.85 = 324.79/x
  3. Step 3: Cross multiply
    560.69x = 773.85 × 324.79
  4. Step 4: Simplify right side
    560.69x = 251,338.74
  5. Step 5: Solve for x
    x = 251,338.74/560.69
  6. Step 6: Final answer
    x = 448.27

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1.5x scale

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.