Home / 1,397,494.32-1,928,610.57-785,839.65

Finding the Fourth Proportional to 1,397,494.32, 1,928,610.57 and 785,839.65

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Solution

The fourth proportional to 1,397,494.32, 1,928,610.57 and 785,839.65 is: 1,084,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,494.32 : 1,928,610.57 = 785,839.65 : x
  2. Step 2: Convert to fraction form
    1,397,494.32/1,928,610.57 = 785,839.65/x
  3. Step 3: Cross multiply
    1,397,494.32x = 1,928,610.57 × 785,839.65
  4. Step 4: Simplify right side
    1,397,494.32x = 1,515,578,655,315.10
  5. Step 5: Solve for x
    x = 1,515,578,655,315.10/1,397,494.32
  6. Step 6: Final answer
    x = 1,084,497.18

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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.