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Finding the Fourth Proportional to 798.04, 1,199.22 and 556.12

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Solution

The fourth proportional to 798.04, 1,199.22 and 556.12 is: 835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.04 : 1,199.22 = 556.12 : x
  2. Step 2: Convert to fraction form
    798.04/1,199.22 = 556.12/x
  3. Step 3: Cross multiply
    798.04x = 1,199.22 × 556.12
  4. Step 4: Simplify right side
    798.04x = 666,910.23
  5. Step 5: Solve for x
    x = 666,910.23/798.04
  6. Step 6: Final answer
    x = 835.69

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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.