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Finding the Fourth Proportional to 652,090.40, 978,308.40 and 231,322.40

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Solution

The fourth proportional to 652,090.40, 978,308.40 and 231,322.40 is: 347,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,090.40 : 978,308.40 = 231,322.40 : x
  2. Step 2: Convert to fraction form
    652,090.40/978,308.40 = 231,322.40/x
  3. Step 3: Cross multiply
    652,090.40x = 978,308.40 × 231,322.40
  4. Step 4: Simplify right side
    652,090.40x = 226,304,647,028.16
  5. Step 5: Solve for x
    x = 226,304,647,028.16/652,090.40
  6. Step 6: Final answer
    x = 347,044.90

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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.