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Finding the Fourth Proportional to 1,985,975.92, 2,978,963.88 and 565,995.09

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Solution

The fourth proportional to 1,985,975.92, 2,978,963.88 and 565,995.09 is: 848,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,975.92 : 2,978,963.88 = 565,995.09 : x
  2. Step 2: Convert to fraction form
    1,985,975.92/2,978,963.88 = 565,995.09/x
  3. Step 3: Cross multiply
    1,985,975.92x = 2,978,963.88 × 565,995.09
  4. Step 4: Simplify right side
    1,985,975.92x = 1,686,078,941,599.70
  5. Step 5: Solve for x
    x = 1,686,078,941,599.70/1,985,975.92
  6. Step 6: Final answer
    x = 848,992.64

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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.