Home / 1,159,639.80-1,738,077.30-485,719.80

Finding the Fourth Proportional to 1,159,639.80, 1,738,077.30 and 485,719.80

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Solution

The fourth proportional to 1,159,639.80, 1,738,077.30 and 485,719.80 is: 728,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,639.80 : 1,738,077.30 = 485,719.80 : x
  2. Step 2: Convert to fraction form
    1,159,639.80/1,738,077.30 = 485,719.80/x
  3. Step 3: Cross multiply
    1,159,639.80x = 1,738,077.30 × 485,719.80
  4. Step 4: Simplify right side
    1,159,639.80x = 844,218,558,540.54
  5. Step 5: Solve for x
    x = 844,218,558,540.54/1,159,639.80
  6. Step 6: Final answer
    x = 728,000.68

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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.