Home / 693,383.40-1,040,366.70-378,066.60

Finding the Fourth Proportional to 693,383.40, 1,040,366.70 and 378,066.60

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Solution

The fourth proportional to 693,383.40, 1,040,366.70 and 378,066.60 is: 567,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,383.40 : 1,040,366.70 = 378,066.60 : x
  2. Step 2: Convert to fraction form
    693,383.40/1,040,366.70 = 378,066.60/x
  3. Step 3: Cross multiply
    693,383.40x = 1,040,366.70 × 378,066.60
  4. Step 4: Simplify right side
    693,383.40x = 393,327,901,022.22
  5. Step 5: Solve for x
    x = 393,327,901,022.22/693,383.40
  6. Step 6: Final answer
    x = 567,258.89

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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.