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Finding the Fourth Proportional to 551.18, 822.60 and 504.70

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Solution

The fourth proportional to 551.18, 822.60 and 504.70 is: 753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.18 : 822.60 = 504.70 : x
  2. Step 2: Convert to fraction form
    551.18/822.60 = 504.70/x
  3. Step 3: Cross multiply
    551.18x = 822.60 × 504.70
  4. Step 4: Simplify right side
    551.18x = 415,164.16
  5. Step 5: Solve for x
    x = 415,164.16/551.18
  6. Step 6: Final answer
    x = 753.22

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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.