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Finding the Fourth Proportional to 677.19, 1,017.33 and 584.94

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Solution

The fourth proportional to 677.19, 1,017.33 and 584.94 is: 878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.19 : 1,017.33 = 584.94 : x
  2. Step 2: Convert to fraction form
    677.19/1,017.33 = 584.94/x
  3. Step 3: Cross multiply
    677.19x = 1,017.33 × 584.94
  4. Step 4: Simplify right side
    677.19x = 595,077.01
  5. Step 5: Solve for x
    x = 595,077.01/677.19
  6. Step 6: Final answer
    x = 878.74

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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.