Home / 1,409,735.29-1,945,429.78-765,155.45

Finding the Fourth Proportional to 1,409,735.29, 1,945,429.78 and 765,155.45

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Solution

The fourth proportional to 1,409,735.29, 1,945,429.78 and 765,155.45 is: 1,055,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,735.29 : 1,945,429.78 = 765,155.45 : x
  2. Step 2: Convert to fraction form
    1,409,735.29/1,945,429.78 = 765,155.45/x
  3. Step 3: Cross multiply
    1,409,735.29x = 1,945,429.78 × 765,155.45
  4. Step 4: Simplify right side
    1,409,735.29x = 1,488,556,198,759.30
  5. Step 5: Solve for x
    x = 1,488,556,198,759.30/1,409,735.29
  6. Step 6: Final answer
    x = 1,055,911.85

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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.