Home / 2,165,342.82-2,988,311.80-1,247,555.28

Finding the Fourth Proportional to 2,165,342.82, 2,988,311.80 and 1,247,555.28

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Solution

The fourth proportional to 2,165,342.82, 2,988,311.80 and 1,247,555.28 is: 1,721,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,342.82 : 2,988,311.80 = 1,247,555.28 : x
  2. Step 2: Convert to fraction form
    2,165,342.82/2,988,311.80 = 1,247,555.28/x
  3. Step 3: Cross multiply
    2,165,342.82x = 2,988,311.80 × 1,247,555.28
  4. Step 4: Simplify right side
    2,165,342.82x = 3,728,084,164,376.30
  5. Step 5: Solve for x
    x = 3,728,084,164,376.30/2,165,342.82
  6. Step 6: Final answer
    x = 1,721,706.20

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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.