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Finding the Fourth Proportional to 944.70, 1,417.07 and 359.55

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Solution

The fourth proportional to 944.70, 1,417.07 and 359.55 is: 539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.70 : 1,417.07 = 359.55 : x
  2. Step 2: Convert to fraction form
    944.70/1,417.07 = 359.55/x
  3. Step 3: Cross multiply
    944.70x = 1,417.07 × 359.55
  4. Step 4: Simplify right side
    944.70x = 509,505.72
  5. Step 5: Solve for x
    x = 509,505.72/944.70
  6. Step 6: Final answer
    x = 539.33

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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.