Home / 1,179.04-1,769.14-485.92

Finding the Fourth Proportional to 1,179.04, 1,769.14 and 485.92

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Solution

The fourth proportional to 1,179.04, 1,769.14 and 485.92 is: 729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.04 : 1,769.14 = 485.92 : x
  2. Step 2: Convert to fraction form
    1,179.04/1,769.14 = 485.92/x
  3. Step 3: Cross multiply
    1,179.04x = 1,769.14 × 485.92
  4. Step 4: Simplify right side
    1,179.04x = 859,660.51
  5. Step 5: Solve for x
    x = 859,660.51/1,179.04
  6. Step 6: Final answer
    x = 729.12

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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.