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Finding the Fourth Proportional to 564.48, 779.34 and 433.24

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Solution

The fourth proportional to 564.48, 779.34 and 433.24 is: 598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.48 : 779.34 = 433.24 : x
  2. Step 2: Convert to fraction form
    564.48/779.34 = 433.24/x
  3. Step 3: Cross multiply
    564.48x = 779.34 × 433.24
  4. Step 4: Simplify right side
    564.48x = 337,641.26
  5. Step 5: Solve for x
    x = 337,641.26/564.48
  6. Step 6: Final answer
    x = 598.15

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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.