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Finding the Fourth Proportional to 652,107.20, 978,160.80 and 403,275.20

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Solution

The fourth proportional to 652,107.20, 978,160.80 and 403,275.20 is: 604,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,107.20 : 978,160.80 = 403,275.20 : x
  2. Step 2: Convert to fraction form
    652,107.20/978,160.80 = 403,275.20/x
  3. Step 3: Cross multiply
    652,107.20x = 978,160.80 × 403,275.20
  4. Step 4: Simplify right side
    652,107.20x = 394,467,992,252.16
  5. Step 5: Solve for x
    x = 394,467,992,252.16/652,107.20
  6. Step 6: Final answer
    x = 604,912.80

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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.