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Finding the Fourth Proportional to 1,203.06, 1,805.22 and 472.84

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Solution

The fourth proportional to 1,203.06, 1,805.22 and 472.84 is: 709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.06 : 1,805.22 = 472.84 : x
  2. Step 2: Convert to fraction form
    1,203.06/1,805.22 = 472.84/x
  3. Step 3: Cross multiply
    1,203.06x = 1,805.22 × 472.84
  4. Step 4: Simplify right side
    1,203.06x = 853,580.22
  5. Step 5: Solve for x
    x = 853,580.22/1,203.06
  6. Step 6: Final answer
    x = 709.51

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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.