Home / 1,942,879.80-2,681,176.86-1,071,695.04

Finding the Fourth Proportional to 1,942,879.80, 2,681,176.86 and 1,071,695.04

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Solution

The fourth proportional to 1,942,879.80, 2,681,176.86 and 1,071,695.04 is: 1,478,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,879.80 : 2,681,176.86 = 1,071,695.04 : x
  2. Step 2: Convert to fraction form
    1,942,879.80/2,681,176.86 = 1,071,695.04/x
  3. Step 3: Cross multiply
    1,942,879.80x = 2,681,176.86 × 1,071,695.04
  4. Step 4: Simplify right side
    1,942,879.80x = 2,873,403,942,224.77
  5. Step 5: Solve for x
    x = 2,873,403,942,224.77/1,942,879.80
  6. Step 6: Final answer
    x = 1,478,940.66

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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.