Home / 927,679.30-1,388,408.55-815,704.90

Finding the Fourth Proportional to 927,679.30, 1,388,408.55 and 815,704.90

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Solution

The fourth proportional to 927,679.30, 1,388,408.55 and 815,704.90 is: 1,220,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,679.30 : 1,388,408.55 = 815,704.90 : x
  2. Step 2: Convert to fraction form
    927,679.30/1,388,408.55 = 815,704.90/x
  3. Step 3: Cross multiply
    927,679.30x = 1,388,408.55 × 815,704.90
  4. Step 4: Simplify right side
    927,679.30x = 1,132,531,657,436.90
  5. Step 5: Solve for x
    x = 1,132,531,657,436.90/927,679.30
  6. Step 6: Final answer
    x = 1,220,822.39

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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.