Home / 1,489,781.45-2,055,890.62-810,722.81

Finding the Fourth Proportional to 1,489,781.45, 2,055,890.62 and 810,722.81

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Solution

The fourth proportional to 1,489,781.45, 2,055,890.62 and 810,722.81 is: 1,118,793.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,781.45 : 2,055,890.62 = 810,722.81 : x
  2. Step 2: Convert to fraction form
    1,489,781.45/2,055,890.62 = 810,722.81/x
  3. Step 3: Cross multiply
    1,489,781.45x = 2,055,890.62 × 810,722.81
  4. Step 4: Simplify right side
    1,489,781.45x = 1,666,757,422,525.85
  5. Step 5: Solve for x
    x = 1,666,757,422,525.85/1,489,781.45
  6. Step 6: Final answer
    x = 1,118,793.24

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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.