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Finding the Fourth Proportional to 730.14, 1,094.79 and 345.39

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Solution

The fourth proportional to 730.14, 1,094.79 and 345.39 is: 517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.14 : 1,094.79 = 345.39 : x
  2. Step 2: Convert to fraction form
    730.14/1,094.79 = 345.39/x
  3. Step 3: Cross multiply
    730.14x = 1,094.79 × 345.39
  4. Step 4: Simplify right side
    730.14x = 378,129.52
  5. Step 5: Solve for x
    x = 378,129.52/730.14
  6. Step 6: Final answer
    x = 517.89

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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.