Home / 2,138,027-2,950,524.78-1,220,237.78

Finding the Fourth Proportional to 2,138,027, 2,950,524.78 and 1,220,237.78

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Solution

The fourth proportional to 2,138,027, 2,950,524.78 and 1,220,237.78 is: 1,683,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,027 : 2,950,524.78 = 1,220,237.78 : x
  2. Step 2: Convert to fraction form
    2,138,027/2,950,524.78 = 1,220,237.78/x
  3. Step 3: Cross multiply
    2,138,027x = 2,950,524.78 × 1,220,237.78
  4. Step 4: Simplify right side
    2,138,027x = 3,600,341,807,382.19
  5. Step 5: Solve for x
    x = 3,600,341,807,382.19/2,138,027
  6. Step 6: Final answer
    x = 1,683,955.26

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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.