Home / 1,297,229.73-1,790,180.49-724,290.40

Finding the Fourth Proportional to 1,297,229.73, 1,790,180.49 and 724,290.40

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Solution

The fourth proportional to 1,297,229.73, 1,790,180.49 and 724,290.40 is: 999,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,229.73 : 1,790,180.49 = 724,290.40 : x
  2. Step 2: Convert to fraction form
    1,297,229.73/1,790,180.49 = 724,290.40/x
  3. Step 3: Cross multiply
    1,297,229.73x = 1,790,180.49 × 724,290.40
  4. Step 4: Simplify right side
    1,297,229.73x = 1,296,610,543,174.30
  5. Step 5: Solve for x
    x = 1,296,610,543,174.30/1,297,229.73
  6. Step 6: Final answer
    x = 999,522.69

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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.