Home / 2,187,713.54-3,018,683.64-1,220,841.50

Finding the Fourth Proportional to 2,187,713.54, 3,018,683.64 and 1,220,841.50

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Solution

The fourth proportional to 2,187,713.54, 3,018,683.64 and 1,220,841.50 is: 1,684,559.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,713.54 : 3,018,683.64 = 1,220,841.50 : x
  2. Step 2: Convert to fraction form
    2,187,713.54/3,018,683.64 = 1,220,841.50/x
  3. Step 3: Cross multiply
    2,187,713.54x = 3,018,683.64 × 1,220,841.50
  4. Step 4: Simplify right side
    2,187,713.54x = 3,685,334,263,083.06
  5. Step 5: Solve for x
    x = 3,685,334,263,083.06/2,187,713.54
  6. Step 6: Final answer
    x = 1,684,559.79

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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.