Home / 1,290,292.03-1,780,716.44-709,617.48

Finding the Fourth Proportional to 1,290,292.03, 1,780,716.44 and 709,617.48

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Solution

The fourth proportional to 1,290,292.03, 1,780,716.44 and 709,617.48 is: 979,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,292.03 : 1,780,716.44 = 709,617.48 : x
  2. Step 2: Convert to fraction form
    1,290,292.03/1,780,716.44 = 709,617.48/x
  3. Step 3: Cross multiply
    1,290,292.03x = 1,780,716.44 × 709,617.48
  4. Step 4: Simplify right side
    1,290,292.03x = 1,263,627,512,747.37
  5. Step 5: Solve for x
    x = 1,263,627,512,747.37/1,290,292.03
  6. Step 6: Final answer
    x = 979,334.51

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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.