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Finding the Fourth Proportional to 1,785.55, 2,463.92 and 999.49

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Solution

The fourth proportional to 1,785.55, 2,463.92 and 999.49 is: 1,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.55 : 2,463.92 = 999.49 : x
  2. Step 2: Convert to fraction form
    1,785.55/2,463.92 = 999.49/x
  3. Step 3: Cross multiply
    1,785.55x = 2,463.92 × 999.49
  4. Step 4: Simplify right side
    1,785.55x = 2,462,655.99
  5. Step 5: Solve for x
    x = 2,462,655.99/1,785.55
  6. Step 6: Final answer
    x = 1,379.22

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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.