Home / 769,871.70-1,062,380.34-425,687.58

Finding the Fourth Proportional to 769,871.70, 1,062,380.34 and 425,687.58

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Solution

The fourth proportional to 769,871.70, 1,062,380.34 and 425,687.58 is: 587,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,871.70 : 1,062,380.34 = 425,687.58 : x
  2. Step 2: Convert to fraction form
    769,871.70/1,062,380.34 = 425,687.58/x
  3. Step 3: Cross multiply
    769,871.70x = 1,062,380.34 × 425,687.58
  4. Step 4: Simplify right side
    769,871.70x = 452,242,115,974.18
  5. Step 5: Solve for x
    x = 452,242,115,974.18/769,871.70
  6. Step 6: Final answer
    x = 587,425.30

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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.