Home / 777,823.20-1,166,734.80-485,785.80

Finding the Fourth Proportional to 777,823.20, 1,166,734.80 and 485,785.80

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Solution

The fourth proportional to 777,823.20, 1,166,734.80 and 485,785.80 is: 728,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,823.20 : 1,166,734.80 = 485,785.80 : x
  2. Step 2: Convert to fraction form
    777,823.20/1,166,734.80 = 485,785.80/x
  3. Step 3: Cross multiply
    777,823.20x = 1,166,734.80 × 485,785.80
  4. Step 4: Simplify right side
    777,823.20x = 566,783,198,205.84
  5. Step 5: Solve for x
    x = 566,783,198,205.84/777,823.20
  6. Step 6: Final answer
    x = 728,678.70

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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.