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Finding the Fourth Proportional to 1,194.84, 1,792.45 and 415.08

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Solution

The fourth proportional to 1,194.84, 1,792.45 and 415.08 is: 622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.84 : 1,792.45 = 415.08 : x
  2. Step 2: Convert to fraction form
    1,194.84/1,792.45 = 415.08/x
  3. Step 3: Cross multiply
    1,194.84x = 1,792.45 × 415.08
  4. Step 4: Simplify right side
    1,194.84x = 744,010.15
  5. Step 5: Solve for x
    x = 744,010.15/1,194.84
  6. Step 6: Final answer
    x = 622.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.