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Finding the Fourth Proportional to 677.61, 936.81 and 595.59

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Solution

The fourth proportional to 677.61, 936.81 and 595.59 is: 823.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.61 : 936.81 = 595.59 : x
  2. Step 2: Convert to fraction form
    677.61/936.81 = 595.59/x
  3. Step 3: Cross multiply
    677.61x = 936.81 × 595.59
  4. Step 4: Simplify right side
    677.61x = 557,954.67
  5. Step 5: Solve for x
    x = 557,954.67/677.61
  6. Step 6: Final answer
    x = 823.42

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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.