Home / 1,422,443.78-1,962,953.54-810,632.96

Finding the Fourth Proportional to 1,422,443.78, 1,962,953.54 and 810,632.96

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Solution

The fourth proportional to 1,422,443.78, 1,962,953.54 and 810,632.96 is: 1,118,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,443.78 : 1,962,953.54 = 810,632.96 : x
  2. Step 2: Convert to fraction form
    1,422,443.78/1,962,953.54 = 810,632.96/x
  3. Step 3: Cross multiply
    1,422,443.78x = 1,962,953.54 × 810,632.96
  4. Step 4: Simplify right side
    1,422,443.78x = 1,591,234,839,326.90
  5. Step 5: Solve for x
    x = 1,591,234,839,326.90/1,422,443.78
  6. Step 6: Final answer
    x = 1,118,662.73

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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.