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Finding the Fourth Proportional to 655.66, 984.74 and 563.32

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Solution

The fourth proportional to 655.66, 984.74 and 563.32 is: 846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.66 : 984.74 = 563.32 : x
  2. Step 2: Convert to fraction form
    655.66/984.74 = 563.32/x
  3. Step 3: Cross multiply
    655.66x = 984.74 × 563.32
  4. Step 4: Simplify right side
    655.66x = 554,723.74
  5. Step 5: Solve for x
    x = 554,723.74/655.66
  6. Step 6: Final answer
    x = 846.05

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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.