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Finding the Fourth Proportional to 854.73, 1,178.98 and 592.70

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Solution

The fourth proportional to 854.73, 1,178.98 and 592.70 is: 817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.73 : 1,178.98 = 592.70 : x
  2. Step 2: Convert to fraction form
    854.73/1,178.98 = 592.70/x
  3. Step 3: Cross multiply
    854.73x = 1,178.98 × 592.70
  4. Step 4: Simplify right side
    854.73x = 698,775.55
  5. Step 5: Solve for x
    x = 698,775.55/854.73
  6. Step 6: Final answer
    x = 817.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.