Home / 1,998,748.70-2,758,200.13-1,139,142.91

Finding the Fourth Proportional to 1,998,748.70, 2,758,200.13 and 1,139,142.91

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Solution

The fourth proportional to 1,998,748.70, 2,758,200.13 and 1,139,142.91 is: 1,571,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,748.70 : 2,758,200.13 = 1,139,142.91 : x
  2. Step 2: Convert to fraction form
    1,998,748.70/2,758,200.13 = 1,139,142.91/x
  3. Step 3: Cross multiply
    1,998,748.70x = 2,758,200.13 × 1,139,142.91
  4. Step 4: Simplify right side
    1,998,748.70x = 3,141,984,122,450.58
  5. Step 5: Solve for x
    x = 3,141,984,122,450.58/1,998,748.70
  6. Step 6: Final answer
    x = 1,571,975.57

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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.