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Finding the Fourth Proportional to 719.11, 1,077.24 and 564.26

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Solution

The fourth proportional to 719.11, 1,077.24 and 564.26 is: 845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.11 : 1,077.24 = 564.26 : x
  2. Step 2: Convert to fraction form
    719.11/1,077.24 = 564.26/x
  3. Step 3: Cross multiply
    719.11x = 1,077.24 × 564.26
  4. Step 4: Simplify right side
    719.11x = 607,846.14
  5. Step 5: Solve for x
    x = 607,846.14/719.11
  6. Step 6: Final answer
    x = 845.28

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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.