Home / 1,208,046.93-1,809,651.33-728,007.72

Finding the Fourth Proportional to 1,208,046.93, 1,809,651.33 and 728,007.72

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Solution

The fourth proportional to 1,208,046.93, 1,809,651.33 and 728,007.72 is: 1,090,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,046.93 : 1,809,651.33 = 728,007.72 : x
  2. Step 2: Convert to fraction form
    1,208,046.93/1,809,651.33 = 728,007.72/x
  3. Step 3: Cross multiply
    1,208,046.93x = 1,809,651.33 × 728,007.72
  4. Step 4: Simplify right side
    1,208,046.93x = 1,317,440,138,748.27
  5. Step 5: Solve for x
    x = 1,317,440,138,748.27/1,208,046.93
  6. Step 6: Final answer
    x = 1,090,553.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.