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Finding the Fourth Proportional to 941.18, 1,410.68 and 453.56

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Solution

The fourth proportional to 941.18, 1,410.68 and 453.56 is: 679.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.18 : 1,410.68 = 453.56 : x
  2. Step 2: Convert to fraction form
    941.18/1,410.68 = 453.56/x
  3. Step 3: Cross multiply
    941.18x = 1,410.68 × 453.56
  4. Step 4: Simplify right side
    941.18x = 639,828.02
  5. Step 5: Solve for x
    x = 639,828.02/941.18
  6. Step 6: Final answer
    x = 679.81

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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.