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Finding the Fourth Proportional to 1,318,582.04, 1,977,857.94 and 321,310.04

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Solution

The fourth proportional to 1,318,582.04, 1,977,857.94 and 321,310.04 is: 481,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,582.04 : 1,977,857.94 = 321,310.04 : x
  2. Step 2: Convert to fraction form
    1,318,582.04/1,977,857.94 = 321,310.04/x
  3. Step 3: Cross multiply
    1,318,582.04x = 1,977,857.94 × 321,310.04
  4. Step 4: Simplify right side
    1,318,582.04x = 635,505,613,815.72
  5. Step 5: Solve for x
    x = 635,505,613,815.72/1,318,582.04
  6. Step 6: Final answer
    x = 481,961.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.