Home / 1,179.50-1,769.58-486.27

Finding the Fourth Proportional to 1,179.50, 1,769.58 and 486.27

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Solution

The fourth proportional to 1,179.50, 1,769.58 and 486.27 is: 729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.50 : 1,769.58 = 486.27 : x
  2. Step 2: Convert to fraction form
    1,179.50/1,769.58 = 486.27/x
  3. Step 3: Cross multiply
    1,179.50x = 1,769.58 × 486.27
  4. Step 4: Simplify right side
    1,179.50x = 860,493.67
  5. Step 5: Solve for x
    x = 860,493.67/1,179.50
  6. Step 6: Final answer
    x = 729.54

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1.5x scale

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.