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Finding the Fourth Proportional to 2,664,757.88, 3,997,099.88 and 642,984.92

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Solution

The fourth proportional to 2,664,757.88, 3,997,099.88 and 642,984.92 is: 964,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,757.88 : 3,997,099.88 = 642,984.92 : x
  2. Step 2: Convert to fraction form
    2,664,757.88/3,997,099.88 = 642,984.92/x
  3. Step 3: Cross multiply
    2,664,757.88x = 3,997,099.88 × 642,984.92
  4. Step 4: Simplify right side
    2,664,757.88x = 2,570,074,946,573.81
  5. Step 5: Solve for x
    x = 2,570,074,946,573.81/2,664,757.88
  6. Step 6: Final answer
    x = 964,468.47

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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.