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Finding the Fourth Proportional to 699.06, 960.36 and 574.32

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Solution

The fourth proportional to 699.06, 960.36 and 574.32 is: 788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.06 : 960.36 = 574.32 : x
  2. Step 2: Convert to fraction form
    699.06/960.36 = 574.32/x
  3. Step 3: Cross multiply
    699.06x = 960.36 × 574.32
  4. Step 4: Simplify right side
    699.06x = 551,553.96
  5. Step 5: Solve for x
    x = 551,553.96/699.06
  6. Step 6: Final answer
    x = 788.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.