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Finding the Fourth Proportional to 798.36, 1,102.08 and 588.16

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Solution

The fourth proportional to 798.36, 1,102.08 and 588.16 is: 811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.36 : 1,102.08 = 588.16 : x
  2. Step 2: Convert to fraction form
    798.36/1,102.08 = 588.16/x
  3. Step 3: Cross multiply
    798.36x = 1,102.08 × 588.16
  4. Step 4: Simplify right side
    798.36x = 648,199.37
  5. Step 5: Solve for x
    x = 648,199.37/798.36
  6. Step 6: Final answer
    x = 811.91

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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.