Home / 1,422,102.28-1,962,519.76-777,523.21

Finding the Fourth Proportional to 1,422,102.28, 1,962,519.76 and 777,523.21

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Solution

The fourth proportional to 1,422,102.28, 1,962,519.76 and 777,523.21 is: 1,072,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,102.28 : 1,962,519.76 = 777,523.21 : x
  2. Step 2: Convert to fraction form
    1,422,102.28/1,962,519.76 = 777,523.21/x
  3. Step 3: Cross multiply
    1,422,102.28x = 1,962,519.76 × 777,523.21
  4. Step 4: Simplify right side
    1,422,102.28x = 1,525,904,668,389.93
  5. Step 5: Solve for x
    x = 1,525,904,668,389.93/1,422,102.28
  6. Step 6: Final answer
    x = 1,072,992.21

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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.