Home / 749,165.20-1,123,747.80-744,499.60

Finding the Fourth Proportional to 749,165.20, 1,123,747.80 and 744,499.60

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Solution

The fourth proportional to 749,165.20, 1,123,747.80 and 744,499.60 is: 1,116,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,165.20 : 1,123,747.80 = 744,499.60 : x
  2. Step 2: Convert to fraction form
    749,165.20/1,123,747.80 = 744,499.60/x
  3. Step 3: Cross multiply
    749,165.20x = 1,123,747.80 × 744,499.60
  4. Step 4: Simplify right side
    749,165.20x = 836,629,787,600.88
  5. Step 5: Solve for x
    x = 836,629,787,600.88/749,165.20
  6. Step 6: Final answer
    x = 1,116,749.40

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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.