Home / 2,138,468.50-2,950,359.94-1,220,037.85

Finding the Fourth Proportional to 2,138,468.50, 2,950,359.94 and 1,220,037.85

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Solution

The fourth proportional to 2,138,468.50, 2,950,359.94 and 1,220,037.85 is: 1,683,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,468.50 : 2,950,359.94 = 1,220,037.85 : x
  2. Step 2: Convert to fraction form
    2,138,468.50/2,950,359.94 = 1,220,037.85/x
  3. Step 3: Cross multiply
    2,138,468.50x = 2,950,359.94 × 1,220,037.85
  4. Step 4: Simplify right side
    2,138,468.50x = 3,599,550,797,923.73
  5. Step 5: Solve for x
    x = 3,599,550,797,923.73/2,138,468.50
  6. Step 6: Final answer
    x = 1,683,237.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.