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Finding the Fourth Proportional to 1,146.67, 1,719.92 and 416.41

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Solution

The fourth proportional to 1,146.67, 1,719.92 and 416.41 is: 624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.67 : 1,719.92 = 416.41 : x
  2. Step 2: Convert to fraction form
    1,146.67/1,719.92 = 416.41/x
  3. Step 3: Cross multiply
    1,146.67x = 1,719.92 × 416.41
  4. Step 4: Simplify right side
    1,146.67x = 716,189.81
  5. Step 5: Solve for x
    x = 716,189.81/1,146.67
  6. Step 6: Final answer
    x = 624.58

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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.