Home / 1,318,512.89-1,987,651.73-1,230,627.53

Finding the Fourth Proportional to 1,318,512.89, 1,987,651.73 and 1,230,627.53

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Solution

The fourth proportional to 1,318,512.89, 1,987,651.73 and 1,230,627.53 is: 1,855,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,512.89 : 1,987,651.73 = 1,230,627.53 : x
  2. Step 2: Convert to fraction form
    1,318,512.89/1,987,651.73 = 1,230,627.53/x
  3. Step 3: Cross multiply
    1,318,512.89x = 1,987,651.73 × 1,230,627.53
  4. Step 4: Simplify right side
    1,318,512.89x = 2,446,058,922,898.73
  5. Step 5: Solve for x
    x = 2,446,058,922,898.73/1,318,512.89
  6. Step 6: Final answer
    x = 1,855,164.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.