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Finding the Fourth Proportional to 936.32, 1,405.33 and 590.27

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Solution

The fourth proportional to 936.32, 1,405.33 and 590.27 is: 885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.32 : 1,405.33 = 590.27 : x
  2. Step 2: Convert to fraction form
    936.32/1,405.33 = 590.27/x
  3. Step 3: Cross multiply
    936.32x = 1,405.33 × 590.27
  4. Step 4: Simplify right side
    936.32x = 829,515.64
  5. Step 5: Solve for x
    x = 829,515.64/936.32
  6. Step 6: Final answer
    x = 885.94

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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.