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Finding the Fourth Proportional to 652,272.60, 978,408.90 and 279,024.60

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Solution

The fourth proportional to 652,272.60, 978,408.90 and 279,024.60 is: 418,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,272.60 : 978,408.90 = 279,024.60 : x
  2. Step 2: Convert to fraction form
    652,272.60/978,408.90 = 279,024.60/x
  3. Step 3: Cross multiply
    652,272.60x = 978,408.90 × 279,024.60
  4. Step 4: Simplify right side
    652,272.60x = 273,000,151,958.94
  5. Step 5: Solve for x
    x = 273,000,151,958.94/652,272.60
  6. Step 6: Final answer
    x = 418,536.90

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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.