Home / 777,813.20-1,166,719.80-485,775.80

Finding the Fourth Proportional to 777,813.20, 1,166,719.80 and 485,775.80

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Solution

The fourth proportional to 777,813.20, 1,166,719.80 and 485,775.80 is: 728,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,813.20 : 1,166,719.80 = 485,775.80 : x
  2. Step 2: Convert to fraction form
    777,813.20/1,166,719.80 = 485,775.80/x
  3. Step 3: Cross multiply
    777,813.20x = 1,166,719.80 × 485,775.80
  4. Step 4: Simplify right side
    777,813.20x = 566,764,244,220.84
  5. Step 5: Solve for x
    x = 566,764,244,220.84/777,813.20
  6. Step 6: Final answer
    x = 728,663.70

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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.