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Finding the Fourth Proportional to 797.93, 1,101.28 and 466.40

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Solution

The fourth proportional to 797.93, 1,101.28 and 466.40 is: 643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.93 : 1,101.28 = 466.40 : x
  2. Step 2: Convert to fraction form
    797.93/1,101.28 = 466.40/x
  3. Step 3: Cross multiply
    797.93x = 1,101.28 × 466.40
  4. Step 4: Simplify right side
    797.93x = 513,631.49
  5. Step 5: Solve for x
    x = 513,631.49/797.93
  6. Step 6: Final answer
    x = 643.70

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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.