Home / 545,137.20-817,708.87-485,442.34

Finding the Fourth Proportional to 545,137.20, 817,708.87 and 485,442.34

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Solution

The fourth proportional to 545,137.20, 817,708.87 and 485,442.34 is: 728,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,137.20 : 817,708.87 = 485,442.34 : x
  2. Step 2: Convert to fraction form
    545,137.20/817,708.87 = 485,442.34/x
  3. Step 3: Cross multiply
    545,137.20x = 817,708.87 × 485,442.34
  4. Step 4: Simplify right side
    545,137.20x = 396,950,504,033.68
  5. Step 5: Solve for x
    x = 396,950,504,033.68/545,137.20
  6. Step 6: Final answer
    x = 728,166.24

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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.