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Finding the Fourth Proportional to 665,162.91, 917,924.87 and 363,356.91

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Solution

The fourth proportional to 665,162.91, 917,924.87 and 363,356.91 is: 501,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,162.91 : 917,924.87 = 363,356.91 : x
  2. Step 2: Convert to fraction form
    665,162.91/917,924.87 = 363,356.91/x
  3. Step 3: Cross multiply
    665,162.91x = 917,924.87 × 363,356.91
  4. Step 4: Simplify right side
    665,162.91x = 333,534,344,375.35
  5. Step 5: Solve for x
    x = 333,534,344,375.35/665,162.91
  6. Step 6: Final answer
    x = 501,432.57

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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.