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Finding the Fourth Proportional to 551.77, 824.67 and 507.98

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Solution

The fourth proportional to 551.77, 824.67 and 507.98 is: 759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.77 : 824.67 = 507.98 : x
  2. Step 2: Convert to fraction form
    551.77/824.67 = 507.98/x
  3. Step 3: Cross multiply
    551.77x = 824.67 × 507.98
  4. Step 4: Simplify right side
    551.77x = 418,917.93
  5. Step 5: Solve for x
    x = 418,917.93/551.77
  6. Step 6: Final answer
    x = 759.23

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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.