Home / 2,187,001.27-3,018,063.64-1,220,131.76

Finding the Fourth Proportional to 2,187,001.27, 3,018,063.64 and 1,220,131.76

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Solution

The fourth proportional to 2,187,001.27, 3,018,063.64 and 1,220,131.76 is: 1,683,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,001.27 : 3,018,063.64 = 1,220,131.76 : x
  2. Step 2: Convert to fraction form
    2,187,001.27/3,018,063.64 = 1,220,131.76/x
  3. Step 3: Cross multiply
    2,187,001.27x = 3,018,063.64 × 1,220,131.76
  4. Step 4: Simplify right side
    2,187,001.27x = 3,682,435,282,724.56
  5. Step 5: Solve for x
    x = 3,682,435,282,724.56/2,187,001.27
  6. Step 6: Final answer
    x = 1,683,782.88

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1.5x scale

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.