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Finding the Fourth Proportional to 806.66, 1,113.26 and 452.59

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Solution

The fourth proportional to 806.66, 1,113.26 and 452.59 is: 624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.66 : 1,113.26 = 452.59 : x
  2. Step 2: Convert to fraction form
    806.66/1,113.26 = 452.59/x
  3. Step 3: Cross multiply
    806.66x = 1,113.26 × 452.59
  4. Step 4: Simplify right side
    806.66x = 503,844.06
  5. Step 5: Solve for x
    x = 503,844.06/806.66
  6. Step 6: Final answer
    x = 624.60

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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.