Home / 1,409,778.18-1,945,495.86-765,198.51

Finding the Fourth Proportional to 1,409,778.18, 1,945,495.86 and 765,198.51

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Solution

The fourth proportional to 1,409,778.18, 1,945,495.86 and 765,198.51 is: 1,055,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,778.18 : 1,945,495.86 = 765,198.51 : x
  2. Step 2: Convert to fraction form
    1,409,778.18/1,945,495.86 = 765,198.51/x
  3. Step 3: Cross multiply
    1,409,778.18x = 1,945,495.86 × 765,198.51
  4. Step 4: Simplify right side
    1,409,778.18x = 1,488,690,523,118.06
  5. Step 5: Solve for x
    x = 1,488,690,523,118.06/1,409,778.18
  6. Step 6: Final answer
    x = 1,055,975.01

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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.