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Finding the Fourth Proportional to 798.45, 1,101.77 and 466.85

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Solution

The fourth proportional to 798.45, 1,101.77 and 466.85 is: 644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.45 : 1,101.77 = 466.85 : x
  2. Step 2: Convert to fraction form
    798.45/1,101.77 = 466.85/x
  3. Step 3: Cross multiply
    798.45x = 1,101.77 × 466.85
  4. Step 4: Simplify right side
    798.45x = 514,363.50
  5. Step 5: Solve for x
    x = 514,363.50/798.45
  6. Step 6: Final answer
    x = 644.21

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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.