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Finding the Fourth Proportional to 798.23, 1,101.40 and 466.60

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Solution

The fourth proportional to 798.23, 1,101.40 and 466.60 is: 643.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.23 : 1,101.40 = 466.60 : x
  2. Step 2: Convert to fraction form
    798.23/1,101.40 = 466.60/x
  3. Step 3: Cross multiply
    798.23x = 1,101.40 × 466.60
  4. Step 4: Simplify right side
    798.23x = 513,907.82
  5. Step 5: Solve for x
    x = 513,907.82/798.23
  6. Step 6: Final answer
    x = 643.81

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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.