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Finding the Fourth Proportional to 569.84, 854.85 and 326.63

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Solution

The fourth proportional to 569.84, 854.85 and 326.63 is: 490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.84 : 854.85 = 326.63 : x
  2. Step 2: Convert to fraction form
    569.84/854.85 = 326.63/x
  3. Step 3: Cross multiply
    569.84x = 854.85 × 326.63
  4. Step 4: Simplify right side
    569.84x = 279,223.02
  5. Step 5: Solve for x
    x = 279,223.02/569.84
  6. Step 6: Final answer
    x = 490.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.