Home / 2,187,038.25-3,018,200.27-1,220,253.03

Finding the Fourth Proportional to 2,187,038.25, 3,018,200.27 and 1,220,253.03

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Solution

The fourth proportional to 2,187,038.25, 3,018,200.27 and 1,220,253.03 is: 1,683,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,038.25 : 3,018,200.27 = 1,220,253.03 : x
  2. Step 2: Convert to fraction form
    2,187,038.25/3,018,200.27 = 1,220,253.03/x
  3. Step 3: Cross multiply
    2,187,038.25x = 3,018,200.27 × 1,220,253.03
  4. Step 4: Simplify right side
    2,187,038.25x = 3,682,968,018,513.05
  5. Step 5: Solve for x
    x = 3,682,968,018,513.05/2,187,038.25
  6. Step 6: Final answer
    x = 1,683,997.99

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