Home / 1,397,561.18-1,928,589.75-785,739.83

Finding the Fourth Proportional to 1,397,561.18, 1,928,589.75 and 785,739.83

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Solution

The fourth proportional to 1,397,561.18, 1,928,589.75 and 785,739.83 is: 1,084,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,561.18 : 1,928,589.75 = 785,739.83 : x
  2. Step 2: Convert to fraction form
    1,397,561.18/1,928,589.75 = 785,739.83/x
  3. Step 3: Cross multiply
    1,397,561.18x = 1,928,589.75 × 785,739.83
  4. Step 4: Simplify right side
    1,397,561.18x = 1,515,369,772,661.79
  5. Step 5: Solve for x
    x = 1,515,369,772,661.79/1,397,561.18
  6. Step 6: Final answer
    x = 1,084,295.84

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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.