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Finding the Fourth Proportional to 665,035, 917,748.30 and 363,229.72

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Solution

The fourth proportional to 665,035, 917,748.30 and 363,229.72 is: 501,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,035 : 917,748.30 = 363,229.72 : x
  2. Step 2: Convert to fraction form
    665,035/917,748.30 = 363,229.72/x
  3. Step 3: Cross multiply
    665,035x = 917,748.30 × 363,229.72
  4. Step 4: Simplify right side
    665,035x = 333,353,458,039.48
  5. Step 5: Solve for x
    x = 333,353,458,039.48/665,035
  6. Step 6: Final answer
    x = 501,257.01

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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.