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Finding the Fourth Proportional to 846.27, 1,270.38 and 499.86

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Solution

The fourth proportional to 846.27, 1,270.38 and 499.86 is: 750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.27 : 1,270.38 = 499.86 : x
  2. Step 2: Convert to fraction form
    846.27/1,270.38 = 499.86/x
  3. Step 3: Cross multiply
    846.27x = 1,270.38 × 499.86
  4. Step 4: Simplify right side
    846.27x = 635,012.15
  5. Step 5: Solve for x
    x = 635,012.15/846.27
  6. Step 6: Final answer
    x = 750.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.