Home / 1,338,615.48-2,008,721.09-485,753.68

Finding the Fourth Proportional to 1,338,615.48, 2,008,721.09 and 485,753.68

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Solution

The fourth proportional to 1,338,615.48, 2,008,721.09 and 485,753.68 is: 728,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,615.48 : 2,008,721.09 = 485,753.68 : x
  2. Step 2: Convert to fraction form
    1,338,615.48/2,008,721.09 = 485,753.68/x
  3. Step 3: Cross multiply
    1,338,615.48x = 2,008,721.09 × 485,753.68
  4. Step 4: Simplify right side
    1,338,615.48x = 975,743,654,110.54
  5. Step 5: Solve for x
    x = 975,743,654,110.54/1,338,615.48
  6. Step 6: Final answer
    x = 728,920.04

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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.