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Finding the Fourth Proportional to 798.76, 1,102.52 and 467.44

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Solution

The fourth proportional to 798.76, 1,102.52 and 467.44 is: 645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.76 : 1,102.52 = 467.44 : x
  2. Step 2: Convert to fraction form
    798.76/1,102.52 = 467.44/x
  3. Step 3: Cross multiply
    798.76x = 1,102.52 × 467.44
  4. Step 4: Simplify right side
    798.76x = 515,361.95
  5. Step 5: Solve for x
    x = 515,361.95/798.76
  6. Step 6: Final answer
    x = 645.20

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Find fourth proportional to 399.38, 551.26 and 233.72
Half scale
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Double scale
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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.