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Finding the Fourth Proportional to 1,184.79, 1,777.53 and 454.44

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Solution

The fourth proportional to 1,184.79, 1,777.53 and 454.44 is: 681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.79 : 1,777.53 = 454.44 : x
  2. Step 2: Convert to fraction form
    1,184.79/1,777.53 = 454.44/x
  3. Step 3: Cross multiply
    1,184.79x = 1,777.53 × 454.44
  4. Step 4: Simplify right side
    1,184.79x = 807,780.73
  5. Step 5: Solve for x
    x = 807,780.73/1,184.79
  6. Step 6: Final answer
    x = 681.79

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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.