Home / 1,305,006.70-1,956,877.19-765,439.29

Finding the Fourth Proportional to 1,305,006.70, 1,956,877.19 and 765,439.29

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Solution

The fourth proportional to 1,305,006.70, 1,956,877.19 and 765,439.29 is: 1,147,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,006.70 : 1,956,877.19 = 765,439.29 : x
  2. Step 2: Convert to fraction form
    1,305,006.70/1,956,877.19 = 765,439.29/x
  3. Step 3: Cross multiply
    1,305,006.70x = 1,956,877.19 × 765,439.29
  4. Step 4: Simplify right side
    1,305,006.70x = 1,497,870,683,103.60
  5. Step 5: Solve for x
    x = 1,497,870,683,103.60/1,305,006.70
  6. Step 6: Final answer
    x = 1,147,787.74

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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.