Home / 1,409,780.93-1,945,499.66-765,201.26

Finding the Fourth Proportional to 1,409,780.93, 1,945,499.66 and 765,201.26

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Solution

The fourth proportional to 1,409,780.93, 1,945,499.66 and 765,201.26 is: 1,055,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,780.93 : 1,945,499.66 = 765,201.26 : x
  2. Step 2: Convert to fraction form
    1,409,780.93/1,945,499.66 = 765,201.26/x
  3. Step 3: Cross multiply
    1,409,780.93x = 1,945,499.66 × 765,201.26
  4. Step 4: Simplify right side
    1,409,780.93x = 1,488,698,787,335.57
  5. Step 5: Solve for x
    x = 1,488,698,787,335.57/1,409,780.93
  6. Step 6: Final answer
    x = 1,055,978.81

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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.