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Finding the Fourth Proportional to 822.93, 1,135.92 and 655.19

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Solution

The fourth proportional to 822.93, 1,135.92 and 655.19 is: 904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    822.93 : 1,135.92 = 655.19 : x
  2. Step 2: Convert to fraction form
    822.93/1,135.92 = 655.19/x
  3. Step 3: Cross multiply
    822.93x = 1,135.92 × 655.19
  4. Step 4: Simplify right side
    822.93x = 744,246.26
  5. Step 5: Solve for x
    x = 744,246.26/822.93
  6. Step 6: Final answer
    x = 904.38

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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.