Home / 1,221,282.28-1,832,089.74-422,349.40

Finding the Fourth Proportional to 1,221,282.28, 1,832,089.74 and 422,349.40

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Solution

The fourth proportional to 1,221,282.28, 1,832,089.74 and 422,349.40 is: 633,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,282.28 : 1,832,089.74 = 422,349.40 : x
  2. Step 2: Convert to fraction form
    1,221,282.28/1,832,089.74 = 422,349.40/x
  3. Step 3: Cross multiply
    1,221,282.28x = 1,832,089.74 × 422,349.40
  4. Step 4: Simplify right side
    1,221,282.28x = 773,782,002,435.16
  5. Step 5: Solve for x
    x = 773,782,002,435.16/1,221,282.28
  6. Step 6: Final answer
    x = 633,581.62

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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.