Home / 1,409,783.36-1,945,448.69-765,189.68

Finding the Fourth Proportional to 1,409,783.36, 1,945,448.69 and 765,189.68

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Solution

The fourth proportional to 1,409,783.36, 1,945,448.69 and 765,189.68 is: 1,055,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,783.36 : 1,945,448.69 = 765,189.68 : x
  2. Step 2: Convert to fraction form
    1,409,783.36/1,945,448.69 = 765,189.68/x
  3. Step 3: Cross multiply
    1,409,783.36x = 1,945,448.69 × 765,189.68
  4. Step 4: Simplify right side
    1,409,783.36x = 1,488,637,247,004.33
  5. Step 5: Solve for x
    x = 1,488,637,247,004.33/1,409,783.36
  6. Step 6: Final answer
    x = 1,055,933.34

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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.