Home / 1,247,121.27-1,719,879.62-817,245.27

Finding the Fourth Proportional to 1,247,121.27, 1,719,879.62 and 817,245.27

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Solution

The fourth proportional to 1,247,121.27, 1,719,879.62 and 817,245.27 is: 1,127,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,121.27 : 1,719,879.62 = 817,245.27 : x
  2. Step 2: Convert to fraction form
    1,247,121.27/1,719,879.62 = 817,245.27/x
  3. Step 3: Cross multiply
    1,247,121.27x = 1,719,879.62 × 817,245.27
  4. Step 4: Simplify right side
    1,247,121.27x = 1,405,563,480,328.17
  5. Step 5: Solve for x
    x = 1,405,563,480,328.17/1,247,121.27
  6. Step 6: Final answer
    x = 1,127,046.35

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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.