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Finding the Fourth Proportional to 577.28, 861.44 and 568.32

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Solution

The fourth proportional to 577.28, 861.44 and 568.32 is: 848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.28 : 861.44 = 568.32 : x
  2. Step 2: Convert to fraction form
    577.28/861.44 = 568.32/x
  3. Step 3: Cross multiply
    577.28x = 861.44 × 568.32
  4. Step 4: Simplify right side
    577.28x = 489,573.58
  5. Step 5: Solve for x
    x = 489,573.58/577.28
  6. Step 6: Final answer
    x = 848.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.