Home / 1,397,391.66-1,928,273.24-808,589.32

Finding the Fourth Proportional to 1,397,391.66, 1,928,273.24 and 808,589.32

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Solution

The fourth proportional to 1,397,391.66, 1,928,273.24 and 808,589.32 is: 1,115,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,391.66 : 1,928,273.24 = 808,589.32 : x
  2. Step 2: Convert to fraction form
    1,397,391.66/1,928,273.24 = 808,589.32/x
  3. Step 3: Cross multiply
    1,397,391.66x = 1,928,273.24 × 808,589.32
  4. Step 4: Simplify right side
    1,397,391.66x = 1,559,181,147,905.80
  5. Step 5: Solve for x
    x = 1,559,181,147,905.80/1,397,391.66
  6. Step 6: Final answer
    x = 1,115,779.63

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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.