Home / 1,917,642.72-2,875,716.32-718,911.60

Finding the Fourth Proportional to 1,917,642.72, 2,875,716.32 and 718,911.60

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Solution

The fourth proportional to 1,917,642.72, 2,875,716.32 and 718,911.60 is: 1,078,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,642.72 : 2,875,716.32 = 718,911.60 : x
  2. Step 2: Convert to fraction form
    1,917,642.72/2,875,716.32 = 718,911.60/x
  3. Step 3: Cross multiply
    1,917,642.72x = 2,875,716.32 × 718,911.60
  4. Step 4: Simplify right side
    1,917,642.72x = 2,067,385,820,757.31
  5. Step 5: Solve for x
    x = 2,067,385,820,757.31/1,917,642.72
  6. Step 6: Final answer
    x = 1,078,087.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.