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Finding the Fourth Proportional to 591.42, 887.56 and 555.56

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Solution

The fourth proportional to 591.42, 887.56 and 555.56 is: 833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.42 : 887.56 = 555.56 : x
  2. Step 2: Convert to fraction form
    591.42/887.56 = 555.56/x
  3. Step 3: Cross multiply
    591.42x = 887.56 × 555.56
  4. Step 4: Simplify right side
    591.42x = 493,092.83
  5. Step 5: Solve for x
    x = 493,092.83/591.42
  6. Step 6: Final answer
    x = 833.74

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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.