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Finding the Fourth Proportional to 1,191.99, 1,788.50 and 462.09

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Solution

The fourth proportional to 1,191.99, 1,788.50 and 462.09 is: 693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.99 : 1,788.50 = 462.09 : x
  2. Step 2: Convert to fraction form
    1,191.99/1,788.50 = 462.09/x
  3. Step 3: Cross multiply
    1,191.99x = 1,788.50 × 462.09
  4. Step 4: Simplify right side
    1,191.99x = 826,447.97
  5. Step 5: Solve for x
    x = 826,447.97/1,191.99
  6. Step 6: Final answer
    x = 693.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.