Home / 854,141.70-1,281,212.55-539,991.30

Finding the Fourth Proportional to 854,141.70, 1,281,212.55 and 539,991.30

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Solution

The fourth proportional to 854,141.70, 1,281,212.55 and 539,991.30 is: 809,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,141.70 : 1,281,212.55 = 539,991.30 : x
  2. Step 2: Convert to fraction form
    854,141.70/1,281,212.55 = 539,991.30/x
  3. Step 3: Cross multiply
    854,141.70x = 1,281,212.55 × 539,991.30
  4. Step 4: Simplify right side
    854,141.70x = 691,843,630,450.82
  5. Step 5: Solve for x
    x = 691,843,630,450.82/854,141.70
  6. Step 6: Final answer
    x = 809,986.95

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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.