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Finding the Fourth Proportional to 597.15, 890.82 and 551.25

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Solution

The fourth proportional to 597.15, 890.82 and 551.25 is: 822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.15 : 890.82 = 551.25 : x
  2. Step 2: Convert to fraction form
    597.15/890.82 = 551.25/x
  3. Step 3: Cross multiply
    597.15x = 890.82 × 551.25
  4. Step 4: Simplify right side
    597.15x = 491,064.53
  5. Step 5: Solve for x
    x = 491,064.53/597.15
  6. Step 6: Final answer
    x = 822.35

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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.