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Finding the Fourth Proportional to 1,489.55, 2,232.64 and 564.53

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Solution

The fourth proportional to 1,489.55, 2,232.64 and 564.53 is: 846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.55 : 2,232.64 = 564.53 : x
  2. Step 2: Convert to fraction form
    1,489.55/2,232.64 = 564.53/x
  3. Step 3: Cross multiply
    1,489.55x = 2,232.64 × 564.53
  4. Step 4: Simplify right side
    1,489.55x = 1,260,392.26
  5. Step 5: Solve for x
    x = 1,260,392.26/1,489.55
  6. Step 6: Final answer
    x = 846.16

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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.