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Finding the Fourth Proportional to 798.76, 1,102.17 and 467.11

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Solution

The fourth proportional to 798.76, 1,102.17 and 467.11 is: 644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.76 : 1,102.17 = 467.11 : x
  2. Step 2: Convert to fraction form
    798.76/1,102.17 = 467.11/x
  3. Step 3: Cross multiply
    798.76x = 1,102.17 × 467.11
  4. Step 4: Simplify right side
    798.76x = 514,834.63
  5. Step 5: Solve for x
    x = 514,834.63/798.76
  6. Step 6: Final answer
    x = 644.54

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Find fourth proportional to 399.38, 551.09 and 233.56
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.