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Finding the Fourth Proportional to 1,499.13, 2,068.79 and 836.06

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Solution

The fourth proportional to 1,499.13, 2,068.79 and 836.06 is: 1,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.13 : 2,068.79 = 836.06 : x
  2. Step 2: Convert to fraction form
    1,499.13/2,068.79 = 836.06/x
  3. Step 3: Cross multiply
    1,499.13x = 2,068.79 × 836.06
  4. Step 4: Simplify right side
    1,499.13x = 1,729,618.04
  5. Step 5: Solve for x
    x = 1,729,618.04/1,499.13
  6. Step 6: Final answer
    x = 1,153.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.