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Finding the Fourth Proportional to 846.79, 1,168.29 and 514.69

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Solution

The fourth proportional to 846.79, 1,168.29 and 514.69 is: 710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.79 : 1,168.29 = 514.69 : x
  2. Step 2: Convert to fraction form
    846.79/1,168.29 = 514.69/x
  3. Step 3: Cross multiply
    846.79x = 1,168.29 × 514.69
  4. Step 4: Simplify right side
    846.79x = 601,304.26
  5. Step 5: Solve for x
    x = 601,304.26/846.79
  6. Step 6: Final answer
    x = 710.10

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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.