Home / 2,138,039.48-2,950,542.15-1,220,250.25

Finding the Fourth Proportional to 2,138,039.48, 2,950,542.15 and 1,220,250.25

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Solution

The fourth proportional to 2,138,039.48, 2,950,542.15 and 1,220,250.25 is: 1,683,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,039.48 : 2,950,542.15 = 1,220,250.25 : x
  2. Step 2: Convert to fraction form
    2,138,039.48/2,950,542.15 = 1,220,250.25/x
  3. Step 3: Cross multiply
    2,138,039.48x = 2,950,542.15 × 1,220,250.25
  4. Step 4: Simplify right side
    2,138,039.48x = 3,600,399,795,285.28
  5. Step 5: Solve for x
    x = 3,600,399,795,285.28/2,138,039.48
  6. Step 6: Final answer
    x = 1,683,972.55

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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.