Home / 756,787.31-1,044,374.64-412,620.43

Finding the Fourth Proportional to 756,787.31, 1,044,374.64 and 412,620.43

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Solution

The fourth proportional to 756,787.31, 1,044,374.64 and 412,620.43 is: 569,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,787.31 : 1,044,374.64 = 412,620.43 : x
  2. Step 2: Convert to fraction form
    756,787.31/1,044,374.64 = 412,620.43/x
  3. Step 3: Cross multiply
    756,787.31x = 1,044,374.64 × 412,620.43
  4. Step 4: Simplify right side
    756,787.31x = 430,930,305,752.92
  5. Step 5: Solve for x
    x = 430,930,305,752.92/756,787.31
  6. Step 6: Final answer
    x = 569,420.63

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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.