Home / 2,989,760.80-4,484,641.20-1,192,921.60

Finding the Fourth Proportional to 2,989,760.80, 4,484,641.20 and 1,192,921.60

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Solution

The fourth proportional to 2,989,760.80, 4,484,641.20 and 1,192,921.60 is: 1,789,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,760.80 : 4,484,641.20 = 1,192,921.60 : x
  2. Step 2: Convert to fraction form
    2,989,760.80/4,484,641.20 = 1,192,921.60/x
  3. Step 3: Cross multiply
    2,989,760.80x = 4,484,641.20 × 1,192,921.60
  4. Step 4: Simplify right side
    2,989,760.80x = 5,349,825,355,729.92
  5. Step 5: Solve for x
    x = 5,349,825,355,729.92/2,989,760.80
  6. Step 6: Final answer
    x = 1,789,382.40

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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.