Home / 1,152,046.20-1,728,069.30-774,132.60

Finding the Fourth Proportional to 1,152,046.20, 1,728,069.30 and 774,132.60

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Solution

The fourth proportional to 1,152,046.20, 1,728,069.30 and 774,132.60 is: 1,161,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,046.20 : 1,728,069.30 = 774,132.60 : x
  2. Step 2: Convert to fraction form
    1,152,046.20/1,728,069.30 = 774,132.60/x
  3. Step 3: Cross multiply
    1,152,046.20x = 1,728,069.30 × 774,132.60
  4. Step 4: Simplify right side
    1,152,046.20x = 1,337,754,780,189.18
  5. Step 5: Solve for x
    x = 1,337,754,780,189.18/1,152,046.20
  6. Step 6: Final answer
    x = 1,161,198.90

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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.