Home / 2,808,059.70-4,212,089.55-1,387,821.90

Finding the Fourth Proportional to 2,808,059.70, 4,212,089.55 and 1,387,821.90

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Solution

The fourth proportional to 2,808,059.70, 4,212,089.55 and 1,387,821.90 is: 2,081,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,059.70 : 4,212,089.55 = 1,387,821.90 : x
  2. Step 2: Convert to fraction form
    2,808,059.70/4,212,089.55 = 1,387,821.90/x
  3. Step 3: Cross multiply
    2,808,059.70x = 4,212,089.55 × 1,387,821.90
  4. Step 4: Simplify right side
    2,808,059.70x = 5,845,630,122,251.15
  5. Step 5: Solve for x
    x = 5,845,630,122,251.15/2,808,059.70
  6. Step 6: Final answer
    x = 2,081,732.85

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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.