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Finding the Fourth Proportional to 665,092.69, 917,828.01 and 363,286.69

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Solution

The fourth proportional to 665,092.69, 917,828.01 and 363,286.69 is: 501,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,092.69 : 917,828.01 = 363,286.69 : x
  2. Step 2: Convert to fraction form
    665,092.69/917,828.01 = 363,286.69/x
  3. Step 3: Cross multiply
    665,092.69x = 917,828.01 × 363,286.69
  4. Step 4: Simplify right side
    665,092.69x = 333,434,697,447.62
  5. Step 5: Solve for x
    x = 333,434,697,447.62/665,092.69
  6. Step 6: Final answer
    x = 501,335.68

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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.