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Finding the Fourth Proportional to 551.60, 822.03 and 534.91

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Solution

The fourth proportional to 551.60, 822.03 and 534.91 is: 797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.60 : 822.03 = 534.91 : x
  2. Step 2: Convert to fraction form
    551.60/822.03 = 534.91/x
  3. Step 3: Cross multiply
    551.60x = 822.03 × 534.91
  4. Step 4: Simplify right side
    551.60x = 439,712.07
  5. Step 5: Solve for x
    x = 439,712.07/551.60
  6. Step 6: Final answer
    x = 797.16

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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.