Home / 2,189,570.16-3,021,578.28-1,222,717.44

Finding the Fourth Proportional to 2,189,570.16, 3,021,578.28 and 1,222,717.44

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Solution

The fourth proportional to 2,189,570.16, 3,021,578.28 and 1,222,717.44 is: 1,687,334.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,570.16 : 3,021,578.28 = 1,222,717.44 : x
  2. Step 2: Convert to fraction form
    2,189,570.16/3,021,578.28 = 1,222,717.44/x
  3. Step 3: Cross multiply
    2,189,570.16x = 3,021,578.28 × 1,222,717.44
  4. Step 4: Simplify right side
    2,189,570.16x = 3,694,536,459,281.20
  5. Step 5: Solve for x
    x = 3,694,536,459,281.20/2,189,570.16
  6. Step 6: Final answer
    x = 1,687,334.13

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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.