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Finding the Fourth Proportional to 1,133.80, 1,700.78 and 484.54

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Solution

The fourth proportional to 1,133.80, 1,700.78 and 484.54 is: 726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.80 : 1,700.78 = 484.54 : x
  2. Step 2: Convert to fraction form
    1,133.80/1,700.78 = 484.54/x
  3. Step 3: Cross multiply
    1,133.80x = 1,700.78 × 484.54
  4. Step 4: Simplify right side
    1,133.80x = 824,095.94
  5. Step 5: Solve for x
    x = 824,095.94/1,133.80
  6. Step 6: Final answer
    x = 726.84

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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.