Home / 1,409,682.68-1,945,363.92-765,102.80

Finding the Fourth Proportional to 1,409,682.68, 1,945,363.92 and 765,102.80

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Solution

The fourth proportional to 1,409,682.68, 1,945,363.92 and 765,102.80 is: 1,055,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,682.68 : 1,945,363.92 = 765,102.80 : x
  2. Step 2: Convert to fraction form
    1,409,682.68/1,945,363.92 = 765,102.80/x
  3. Step 3: Cross multiply
    1,409,682.68x = 1,945,363.92 × 765,102.80
  4. Step 4: Simplify right side
    1,409,682.68x = 1,488,403,382,210.98
  5. Step 5: Solve for x
    x = 1,488,403,382,210.98/1,409,682.68
  6. Step 6: Final answer
    x = 1,055,842.85

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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.