Home / 1,221,295.28-1,832,109.24-422,362.40

Finding the Fourth Proportional to 1,221,295.28, 1,832,109.24 and 422,362.40

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Solution

The fourth proportional to 1,221,295.28, 1,832,109.24 and 422,362.40 is: 633,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,295.28 : 1,832,109.24 = 422,362.40 : x
  2. Step 2: Convert to fraction form
    1,221,295.28/1,832,109.24 = 422,362.40/x
  3. Step 3: Cross multiply
    1,221,295.28x = 1,832,109.24 × 422,362.40
  4. Step 4: Simplify right side
    1,221,295.28x = 773,814,055,668.58
  5. Step 5: Solve for x
    x = 773,814,055,668.58/1,221,295.28
  6. Step 6: Final answer
    x = 633,601.12

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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.