Home / 1,422,363.12-1,961,936.28-912,257.52

Finding the Fourth Proportional to 1,422,363.12, 1,961,936.28 and 912,257.52

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Solution

The fourth proportional to 1,422,363.12, 1,961,936.28 and 912,257.52 is: 1,258,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,363.12 : 1,961,936.28 = 912,257.52 : x
  2. Step 2: Convert to fraction form
    1,422,363.12/1,961,936.28 = 912,257.52/x
  3. Step 3: Cross multiply
    1,422,363.12x = 1,961,936.28 × 912,257.52
  4. Step 4: Simplify right side
    1,422,363.12x = 1,789,791,125,190.83
  5. Step 5: Solve for x
    x = 1,789,791,125,190.83/1,422,363.12
  6. Step 6: Final answer
    x = 1,258,322.22

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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.