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Finding the Fourth Proportional to 669,313.25, 923,647.18 and 363,383.61

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Solution

The fourth proportional to 669,313.25, 923,647.18 and 363,383.61 is: 501,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,313.25 : 923,647.18 = 363,383.61 : x
  2. Step 2: Convert to fraction form
    669,313.25/923,647.18 = 363,383.61/x
  3. Step 3: Cross multiply
    669,313.25x = 923,647.18 × 363,383.61
  4. Step 4: Simplify right side
    669,313.25x = 335,638,246,634.72
  5. Step 5: Solve for x
    x = 335,638,246,634.72/669,313.25
  6. Step 6: Final answer
    x = 501,466.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.