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Finding the Fourth Proportional to 1,518.57, 2,278.43 and 594.79

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Solution

The fourth proportional to 1,518.57, 2,278.43 and 594.79 is: 892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.57 : 2,278.43 = 594.79 : x
  2. Step 2: Convert to fraction form
    1,518.57/2,278.43 = 594.79/x
  3. Step 3: Cross multiply
    1,518.57x = 2,278.43 × 594.79
  4. Step 4: Simplify right side
    1,518.57x = 1,355,173.01
  5. Step 5: Solve for x
    x = 1,355,173.01/1,518.57
  6. Step 6: Final answer
    x = 892.40

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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.