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Finding the Fourth Proportional to 1,446.41, 1,996.05 and 783.27

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Solution

The fourth proportional to 1,446.41, 1,996.05 and 783.27 is: 1,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.41 : 1,996.05 = 783.27 : x
  2. Step 2: Convert to fraction form
    1,446.41/1,996.05 = 783.27/x
  3. Step 3: Cross multiply
    1,446.41x = 1,996.05 × 783.27
  4. Step 4: Simplify right side
    1,446.41x = 1,563,446.08
  5. Step 5: Solve for x
    x = 1,563,446.08/1,446.41
  6. Step 6: Final answer
    x = 1,080.92

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Why These Related Problems?

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