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Finding the Fourth Proportional to 798.19, 1,101.63 and 574.87

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Solution

The fourth proportional to 798.19, 1,101.63 and 574.87 is: 793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.19 : 1,101.63 = 574.87 : x
  2. Step 2: Convert to fraction form
    798.19/1,101.63 = 574.87/x
  3. Step 3: Cross multiply
    798.19x = 1,101.63 × 574.87
  4. Step 4: Simplify right side
    798.19x = 633,294.04
  5. Step 5: Solve for x
    x = 633,294.04/798.19
  6. Step 6: Final answer
    x = 793.41

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Double scale
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1.5x scale

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.