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Finding the Fourth Proportional to 741.33, 1,023.35 and 564.32

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Solution

The fourth proportional to 741.33, 1,023.35 and 564.32 is: 778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.33 : 1,023.35 = 564.32 : x
  2. Step 2: Convert to fraction form
    741.33/1,023.35 = 564.32/x
  3. Step 3: Cross multiply
    741.33x = 1,023.35 × 564.32
  4. Step 4: Simplify right side
    741.33x = 577,488.93
  5. Step 5: Solve for x
    x = 577,488.93/741.33
  6. Step 6: Final answer
    x = 778.99

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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.