Home / 1,687,917.88-2,530,127.22-1,055,379.16

Finding the Fourth Proportional to 1,687,917.88, 2,530,127.22 and 1,055,379.16

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Solution

The fourth proportional to 1,687,917.88, 2,530,127.22 and 1,055,379.16 is: 1,581,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,917.88 : 2,530,127.22 = 1,055,379.16 : x
  2. Step 2: Convert to fraction form
    1,687,917.88/2,530,127.22 = 1,055,379.16/x
  3. Step 3: Cross multiply
    1,687,917.88x = 2,530,127.22 × 1,055,379.16
  4. Step 4: Simplify right side
    1,687,917.88x = 2,670,243,540,136.74
  5. Step 5: Solve for x
    x = 2,670,243,540,136.74/1,687,917.88
  6. Step 6: Final answer
    x = 1,581,974.79

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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.