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Finding the Fourth Proportional to 584.42, 874.01 and 519.82

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Solution

The fourth proportional to 584.42, 874.01 and 519.82 is: 777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.42 : 874.01 = 519.82 : x
  2. Step 2: Convert to fraction form
    584.42/874.01 = 519.82/x
  3. Step 3: Cross multiply
    584.42x = 874.01 × 519.82
  4. Step 4: Simplify right side
    584.42x = 454,326.99
  5. Step 5: Solve for x
    x = 454,326.99/584.42
  6. Step 6: Final answer
    x = 777.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.