Home / 1,270,142.32-1,752,795.56-718,847.96

Finding the Fourth Proportional to 1,270,142.32, 1,752,795.56 and 718,847.96

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Solution

The fourth proportional to 1,270,142.32, 1,752,795.56 and 718,847.96 is: 992,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,142.32 : 1,752,795.56 = 718,847.96 : x
  2. Step 2: Convert to fraction form
    1,270,142.32/1,752,795.56 = 718,847.96/x
  3. Step 3: Cross multiply
    1,270,142.32x = 1,752,795.56 × 718,847.96
  4. Step 4: Simplify right side
    1,270,142.32x = 1,259,993,512,603.06
  5. Step 5: Solve for x
    x = 1,259,993,512,603.06/1,270,142.32
  6. Step 6: Final answer
    x = 992,009.71

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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.