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Finding the Fourth Proportional to 669,287.49, 923,616.73 and 363,363.86

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Solution

The fourth proportional to 669,287.49, 923,616.73 and 363,363.86 is: 501,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,287.49 : 923,616.73 = 363,363.86 : x
  2. Step 2: Convert to fraction form
    669,287.49/923,616.73 = 363,363.86/x
  3. Step 3: Cross multiply
    669,287.49x = 923,616.73 × 363,363.86
  4. Step 4: Simplify right side
    669,287.49x = 335,608,940,173.38
  5. Step 5: Solve for x
    x = 335,608,940,173.38/669,287.49
  6. Step 6: Final answer
    x = 501,442.12

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Double scale
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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.