Home / 804,766.30-1,207,716.64-378,321.54

Finding the Fourth Proportional to 804,766.30, 1,207,716.64 and 378,321.54

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Solution

The fourth proportional to 804,766.30, 1,207,716.64 and 378,321.54 is: 567,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,766.30 : 1,207,716.64 = 378,321.54 : x
  2. Step 2: Convert to fraction form
    804,766.30/1,207,716.64 = 378,321.54/x
  3. Step 3: Cross multiply
    804,766.30x = 1,207,716.64 × 378,321.54
  4. Step 4: Simplify right side
    804,766.30x = 456,905,219,128.43
  5. Step 5: Solve for x
    x = 456,905,219,128.43/804,766.30
  6. Step 6: Final answer
    x = 567,748.95

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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.