Home / 2,215,322.19-3,057,069.05-1,221,929.36

Finding the Fourth Proportional to 2,215,322.19, 3,057,069.05 and 1,221,929.36

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Solution

The fourth proportional to 2,215,322.19, 3,057,069.05 and 1,221,929.36 is: 1,686,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215,322.19 : 3,057,069.05 = 1,221,929.36 : x
  2. Step 2: Convert to fraction form
    2,215,322.19/3,057,069.05 = 1,221,929.36/x
  3. Step 3: Cross multiply
    2,215,322.19x = 3,057,069.05 × 1,221,929.36
  4. Step 4: Simplify right side
    2,215,322.19x = 3,735,522,421,632.66
  5. Step 5: Solve for x
    x = 3,735,522,421,632.66/2,215,322.19
  6. Step 6: Final answer
    x = 1,686,220.83

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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.