Home / 2,187,020.79-3,018,090.57-1,220,151.23

Finding the Fourth Proportional to 2,187,020.79, 3,018,090.57 and 1,220,151.23

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Solution

The fourth proportional to 2,187,020.79, 3,018,090.57 and 1,220,151.23 is: 1,683,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,020.79 : 3,018,090.57 = 1,220,151.23 : x
  2. Step 2: Convert to fraction form
    2,187,020.79/3,018,090.57 = 1,220,151.23/x
  3. Step 3: Cross multiply
    2,187,020.79x = 3,018,090.57 × 1,220,151.23
  4. Step 4: Simplify right side
    2,187,020.79x = 3,682,526,921,236.90
  5. Step 5: Solve for x
    x = 3,682,526,921,236.90/2,187,020.79
  6. Step 6: Final answer
    x = 1,683,809.75

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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.