Home / 2,157,045.73-2,976,785.40-1,190,238.30

Finding the Fourth Proportional to 2,157,045.73, 2,976,785.40 and 1,190,238.30

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Solution

The fourth proportional to 2,157,045.73, 2,976,785.40 and 1,190,238.30 is: 1,642,563.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,045.73 : 2,976,785.40 = 1,190,238.30 : x
  2. Step 2: Convert to fraction form
    2,157,045.73/2,976,785.40 = 1,190,238.30/x
  3. Step 3: Cross multiply
    2,157,045.73x = 2,976,785.40 × 1,190,238.30
  4. Step 4: Simplify right side
    2,157,045.73x = 3,543,083,993,960.82
  5. Step 5: Solve for x
    x = 3,543,083,993,960.82/2,157,045.73
  6. Step 6: Final answer
    x = 1,642,563.23

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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.