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Finding the Fourth Proportional to 328,064.71, 449,776.67 and 322,086

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Solution

The fourth proportional to 328,064.71, 449,776.67 and 322,086 is: 441,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,064.71 : 449,776.67 = 322,086 : x
  2. Step 2: Convert to fraction form
    328,064.71/449,776.67 = 322,086/x
  3. Step 3: Cross multiply
    328,064.71x = 449,776.67 × 322,086
  4. Step 4: Simplify right side
    328,064.71x = 144,866,768,533.62
  5. Step 5: Solve for x
    x = 144,866,768,533.62/328,064.71
  6. Step 6: Final answer
    x = 441,579.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.