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Finding the Fourth Proportional to 1,984,940.52, 2,976,212.25 and 890,525.49

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Solution

The fourth proportional to 1,984,940.52, 2,976,212.25 and 890,525.49 is: 1,335,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,940.52 : 2,976,212.25 = 890,525.49 : x
  2. Step 2: Convert to fraction form
    1,984,940.52/2,976,212.25 = 890,525.49/x
  3. Step 3: Cross multiply
    1,984,940.52x = 2,976,212.25 × 890,525.49
  4. Step 4: Simplify right side
    1,984,940.52x = 2,650,392,872,275.25
  5. Step 5: Solve for x
    x = 2,650,392,872,275.25/1,984,940.52
  6. Step 6: Final answer
    x = 1,335,250.53

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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.