Home / 1,072,826.80-1,608,216.20-398,727.60

Finding the Fourth Proportional to 1,072,826.80, 1,608,216.20 and 398,727.60

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Solution

The fourth proportional to 1,072,826.80, 1,608,216.20 and 398,727.60 is: 597,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,826.80 : 1,608,216.20 = 398,727.60 : x
  2. Step 2: Convert to fraction form
    1,072,826.80/1,608,216.20 = 398,727.60/x
  3. Step 3: Cross multiply
    1,072,826.80x = 1,608,216.20 × 398,727.60
  4. Step 4: Simplify right side
    1,072,826.80x = 641,240,185,707.12
  5. Step 5: Solve for x
    x = 641,240,185,707.12/1,072,826.80
  6. Step 6: Final answer
    x = 597,710.82

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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.