Home / 1,204,666.40-1,662,491.76-721,137.98

Finding the Fourth Proportional to 1,204,666.40, 1,662,491.76 and 721,137.98

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Solution

The fourth proportional to 1,204,666.40, 1,662,491.76 and 721,137.98 is: 995,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,666.40 : 1,662,491.76 = 721,137.98 : x
  2. Step 2: Convert to fraction form
    1,204,666.40/1,662,491.76 = 721,137.98/x
  3. Step 3: Cross multiply
    1,204,666.40x = 1,662,491.76 × 721,137.98
  4. Step 4: Simplify right side
    1,204,666.40x = 1,198,885,949,573.04
  5. Step 5: Solve for x
    x = 1,198,885,949,573.04/1,204,666.40
  6. Step 6: Final answer
    x = 995,201.62

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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.