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Finding the Fourth Proportional to 560.95, 774.21 and 324.86

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Solution

The fourth proportional to 560.95, 774.21 and 324.86 is: 448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.95 : 774.21 = 324.86 : x
  2. Step 2: Convert to fraction form
    560.95/774.21 = 324.86/x
  3. Step 3: Cross multiply
    560.95x = 774.21 × 324.86
  4. Step 4: Simplify right side
    560.95x = 251,509.74
  5. Step 5: Solve for x
    x = 251,509.74/560.95
  6. Step 6: Final answer
    x = 448.37

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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.