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Finding the Fourth Proportional to 665,502.33, 918,391.19 and 363,696.33

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Solution

The fourth proportional to 665,502.33, 918,391.19 and 363,696.33 is: 501,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,502.33 : 918,391.19 = 363,696.33 : x
  2. Step 2: Convert to fraction form
    665,502.33/918,391.19 = 363,696.33/x
  3. Step 3: Cross multiply
    665,502.33x = 918,391.19 × 363,696.33
  4. Step 4: Simplify right side
    665,502.33x = 334,015,503,488.85
  5. Step 5: Solve for x
    x = 334,015,503,488.85/665,502.33
  6. Step 6: Final answer
    x = 501,899.83

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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.