Home / 1,431,953.64-1,976,022.54-787,357.26

Finding the Fourth Proportional to 1,431,953.64, 1,976,022.54 and 787,357.26

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Solution

The fourth proportional to 1,431,953.64, 1,976,022.54 and 787,357.26 is: 1,086,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,953.64 : 1,976,022.54 = 787,357.26 : x
  2. Step 2: Convert to fraction form
    1,431,953.64/1,976,022.54 = 787,357.26/x
  3. Step 3: Cross multiply
    1,431,953.64x = 1,976,022.54 × 787,357.26
  4. Step 4: Simplify right side
    1,431,953.64x = 1,555,835,692,792.64
  5. Step 5: Solve for x
    x = 1,555,835,692,792.64/1,431,953.64
  6. Step 6: Final answer
    x = 1,086,512.61

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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.