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Finding the Fourth Proportional to 1,318,791.02, 1,978,127.10 and 549,972.14

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Solution

The fourth proportional to 1,318,791.02, 1,978,127.10 and 549,972.14 is: 824,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,791.02 : 1,978,127.10 = 549,972.14 : x
  2. Step 2: Convert to fraction form
    1,318,791.02/1,978,127.10 = 549,972.14/x
  3. Step 3: Cross multiply
    1,318,791.02x = 1,978,127.10 × 549,972.14
  4. Step 4: Simplify right side
    1,318,791.02x = 1,087,914,784,488.36
  5. Step 5: Solve for x
    x = 1,087,914,784,488.36/1,318,791.02
  6. Step 6: Final answer
    x = 824,933.42

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