Home / 777,772.80-1,166,659.20-724,628.70

Finding the Fourth Proportional to 777,772.80, 1,166,659.20 and 724,628.70

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Solution

The fourth proportional to 777,772.80, 1,166,659.20 and 724,628.70 is: 1,086,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,772.80 : 1,166,659.20 = 724,628.70 : x
  2. Step 2: Convert to fraction form
    777,772.80/1,166,659.20 = 724,628.70/x
  3. Step 3: Cross multiply
    777,772.80x = 1,166,659.20 × 724,628.70
  4. Step 4: Simplify right side
    777,772.80x = 845,394,739,439.04
  5. Step 5: Solve for x
    x = 845,394,739,439.04/777,772.80
  6. Step 6: Final answer
    x = 1,086,943.05

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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.