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Finding the Fourth Proportional to 636,958.46, 879,039.88 and 365,110.58

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Solution

The fourth proportional to 636,958.46, 879,039.88 and 365,110.58 is: 503,873.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,958.46 : 879,039.88 = 365,110.58 : x
  2. Step 2: Convert to fraction form
    636,958.46/879,039.88 = 365,110.58/x
  3. Step 3: Cross multiply
    636,958.46x = 879,039.88 × 365,110.58
  4. Step 4: Simplify right side
    636,958.46x = 320,946,760,429.93
  5. Step 5: Solve for x
    x = 320,946,760,429.93/636,958.46
  6. Step 6: Final answer
    x = 503,873.93

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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.