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Finding the Fourth Proportional to 551.68, 821.60 and 532.52

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Solution

The fourth proportional to 551.68, 821.60 and 532.52 is: 793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.68 : 821.60 = 532.52 : x
  2. Step 2: Convert to fraction form
    551.68/821.60 = 532.52/x
  3. Step 3: Cross multiply
    551.68x = 821.60 × 532.52
  4. Step 4: Simplify right side
    551.68x = 437,518.43
  5. Step 5: Solve for x
    x = 437,518.43/551.68
  6. Step 6: Final answer
    x = 793.07

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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.