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Finding the Fourth Proportional to 1,202.01, 1,802.61 and 552.39

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Solution

The fourth proportional to 1,202.01, 1,802.61 and 552.39 is: 828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.01 : 1,802.61 = 552.39 : x
  2. Step 2: Convert to fraction form
    1,202.01/1,802.61 = 552.39/x
  3. Step 3: Cross multiply
    1,202.01x = 1,802.61 × 552.39
  4. Step 4: Simplify right side
    1,202.01x = 995,743.74
  5. Step 5: Solve for x
    x = 995,743.74/1,202.01
  6. Step 6: Final answer
    x = 828.40

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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.