Home / 1,305,006.64-1,956,877.09-765,439.23

Finding the Fourth Proportional to 1,305,006.64, 1,956,877.09 and 765,439.23

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Solution

The fourth proportional to 1,305,006.64, 1,956,877.09 and 765,439.23 is: 1,147,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,006.64 : 1,956,877.09 = 765,439.23 : x
  2. Step 2: Convert to fraction form
    1,305,006.64/1,956,877.09 = 765,439.23/x
  3. Step 3: Cross multiply
    1,305,006.64x = 1,956,877.09 × 765,439.23
  4. Step 4: Simplify right side
    1,305,006.64x = 1,497,870,489,147.04
  5. Step 5: Solve for x
    x = 1,497,870,489,147.04/1,305,006.64
  6. Step 6: Final answer
    x = 1,147,787.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.