Home / 1,296,858.34-1,945,380.78-498,139.90

Finding the Fourth Proportional to 1,296,858.34, 1,945,380.78 and 498,139.90

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Solution

The fourth proportional to 1,296,858.34, 1,945,380.78 and 498,139.90 is: 747,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,858.34 : 1,945,380.78 = 498,139.90 : x
  2. Step 2: Convert to fraction form
    1,296,858.34/1,945,380.78 = 498,139.90/x
  3. Step 3: Cross multiply
    1,296,858.34x = 1,945,380.78 × 498,139.90
  4. Step 4: Simplify right side
    1,296,858.34x = 969,071,787,211.12
  5. Step 5: Solve for x
    x = 969,071,787,211.12/1,296,858.34
  6. Step 6: Final answer
    x = 747,245.68

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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.