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Finding the Fourth Proportional to 1,134.20, 1,700.44 and 578.99

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Solution

The fourth proportional to 1,134.20, 1,700.44 and 578.99 is: 868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.20 : 1,700.44 = 578.99 : x
  2. Step 2: Convert to fraction form
    1,134.20/1,700.44 = 578.99/x
  3. Step 3: Cross multiply
    1,134.20x = 1,700.44 × 578.99
  4. Step 4: Simplify right side
    1,134.20x = 984,537.76
  5. Step 5: Solve for x
    x = 984,537.76/1,134.20
  6. Step 6: Final answer
    x = 868.05

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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.