Home / 2,158,585.36-2,978,851.60-1,191,717.28

Finding the Fourth Proportional to 2,158,585.36, 2,978,851.60 and 1,191,717.28

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Solution

The fourth proportional to 2,158,585.36, 2,978,851.60 and 1,191,717.28 is: 1,644,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,585.36 : 2,978,851.60 = 1,191,717.28 : x
  2. Step 2: Convert to fraction form
    2,158,585.36/2,978,851.60 = 1,191,717.28/x
  3. Step 3: Cross multiply
    2,158,585.36x = 2,978,851.60 × 1,191,717.28
  4. Step 4: Simplify right side
    2,158,585.36x = 3,549,948,926,275.65
  5. Step 5: Solve for x
    x = 3,549,948,926,275.65/2,158,585.36
  6. Step 6: Final answer
    x = 1,644,571.95

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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.