Home / 2,187,019.29-3,018,088.49-1,220,149.73

Finding the Fourth Proportional to 2,187,019.29, 3,018,088.49 and 1,220,149.73

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Solution

The fourth proportional to 2,187,019.29, 3,018,088.49 and 1,220,149.73 is: 1,683,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,019.29 : 3,018,088.49 = 1,220,149.73 : x
  2. Step 2: Convert to fraction form
    2,187,019.29/3,018,088.49 = 1,220,149.73/x
  3. Step 3: Cross multiply
    2,187,019.29x = 3,018,088.49 × 1,220,149.73
  4. Step 4: Simplify right side
    2,187,019.29x = 3,682,519,844,149.54
  5. Step 5: Solve for x
    x = 3,682,519,844,149.54/2,187,019.29
  6. Step 6: Final answer
    x = 1,683,807.67

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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.