Home / 2,187,536.73-3,018,953.21-1,220,683.07

Finding the Fourth Proportional to 2,187,536.73, 3,018,953.21 and 1,220,683.07

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Solution

The fourth proportional to 2,187,536.73, 3,018,953.21 and 1,220,683.07 is: 1,684,627.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,536.73 : 3,018,953.21 = 1,220,683.07 : x
  2. Step 2: Convert to fraction form
    2,187,536.73/3,018,953.21 = 1,220,683.07/x
  3. Step 3: Cross multiply
    2,187,536.73x = 3,018,953.21 × 1,220,683.07
  4. Step 4: Simplify right side
    2,187,536.73x = 3,685,185,051,370.97
  5. Step 5: Solve for x
    x = 3,685,185,051,370.97/2,187,536.73
  6. Step 6: Final answer
    x = 1,684,627.74

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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.