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Finding the Fourth Proportional to 558.84, 833.68 and 519.56

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Solution

The fourth proportional to 558.84, 833.68 and 519.56 is: 775.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.84 : 833.68 = 519.56 : x
  2. Step 2: Convert to fraction form
    558.84/833.68 = 519.56/x
  3. Step 3: Cross multiply
    558.84x = 833.68 × 519.56
  4. Step 4: Simplify right side
    558.84x = 433,146.78
  5. Step 5: Solve for x
    x = 433,146.78/558.84
  6. Step 6: Final answer
    x = 775.08

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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.