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Finding the Fourth Proportional to 846.15, 1,167.51 and 496.65

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Solution

The fourth proportional to 846.15, 1,167.51 and 496.65 is: 685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.15 : 1,167.51 = 496.65 : x
  2. Step 2: Convert to fraction form
    846.15/1,167.51 = 496.65/x
  3. Step 3: Cross multiply
    846.15x = 1,167.51 × 496.65
  4. Step 4: Simplify right side
    846.15x = 579,843.84
  5. Step 5: Solve for x
    x = 579,843.84/846.15
  6. Step 6: Final answer
    x = 685.27

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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.