Home / 1,338,615.86-2,008,721.66-485,754.05

Finding the Fourth Proportional to 1,338,615.86, 2,008,721.66 and 485,754.05

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Solution

The fourth proportional to 1,338,615.86, 2,008,721.66 and 485,754.05 is: 728,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,615.86 : 2,008,721.66 = 485,754.05 : x
  2. Step 2: Convert to fraction form
    1,338,615.86/2,008,721.66 = 485,754.05/x
  3. Step 3: Cross multiply
    1,338,615.86x = 2,008,721.66 × 485,754.05
  4. Step 4: Simplify right side
    1,338,615.86x = 975,744,684,260.76
  5. Step 5: Solve for x
    x = 975,744,684,260.76/1,338,615.86
  6. Step 6: Final answer
    x = 728,920.61

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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.