Home / 1,809,071.75-2,497,687.34-1,121,478.41

Finding the Fourth Proportional to 1,809,071.75, 2,497,687.34 and 1,121,478.41

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Solution

The fourth proportional to 1,809,071.75, 2,497,687.34 and 1,121,478.41 is: 1,548,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,071.75 : 2,497,687.34 = 1,121,478.41 : x
  2. Step 2: Convert to fraction form
    1,809,071.75/2,497,687.34 = 1,121,478.41/x
  3. Step 3: Cross multiply
    1,809,071.75x = 2,497,687.34 × 1,121,478.41
  4. Step 4: Simplify right side
    1,809,071.75x = 2,801,102,408,644.50
  5. Step 5: Solve for x
    x = 2,801,102,408,644.50/1,809,071.75
  6. Step 6: Final answer
    x = 1,548,364.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.