Home / 1,339,619.40-2,005,874.82-806,408.28

Finding the Fourth Proportional to 1,339,619.40, 2,005,874.82 and 806,408.28

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Solution

The fourth proportional to 1,339,619.40, 2,005,874.82 and 806,408.28 is: 1,207,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,619.40 : 2,005,874.82 = 806,408.28 : x
  2. Step 2: Convert to fraction form
    1,339,619.40/2,005,874.82 = 806,408.28/x
  3. Step 3: Cross multiply
    1,339,619.40x = 2,005,874.82 × 806,408.28
  4. Step 4: Simplify right side
    1,339,619.40x = 1,617,554,063,491.51
  5. Step 5: Solve for x
    x = 1,617,554,063,491.51/1,339,619.40
  6. Step 6: Final answer
    x = 1,207,472.86

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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.