Home / 2,205,996.78-3,043,803.30-1,287,809.22

Finding the Fourth Proportional to 2,205,996.78, 3,043,803.30 and 1,287,809.22

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Solution

The fourth proportional to 2,205,996.78, 3,043,803.30 and 1,287,809.22 is: 1,776,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205,996.78 : 3,043,803.30 = 1,287,809.22 : x
  2. Step 2: Convert to fraction form
    2,205,996.78/3,043,803.30 = 1,287,809.22/x
  3. Step 3: Cross multiply
    2,205,996.78x = 3,043,803.30 × 1,287,809.22
  4. Step 4: Simplify right side
    2,205,996.78x = 3,919,837,953,606.43
  5. Step 5: Solve for x
    x = 3,919,837,953,606.43/2,205,996.78
  6. Step 6: Final answer
    x = 1,776,901.03

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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.