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Finding the Fourth Proportional to 652,616.44, 978,885.16 and 388,060.52

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Solution

The fourth proportional to 652,616.44, 978,885.16 and 388,060.52 is: 582,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,616.44 : 978,885.16 = 388,060.52 : x
  2. Step 2: Convert to fraction form
    652,616.44/978,885.16 = 388,060.52/x
  3. Step 3: Cross multiply
    652,616.44x = 978,885.16 × 388,060.52
  4. Step 4: Simplify right side
    652,616.44x = 379,866,684,209.88
  5. Step 5: Solve for x
    x = 379,866,684,209.88/652,616.44
  6. Step 6: Final answer
    x = 582,067.29

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Why These Related Problems?

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