Home / 2,139,764.82-3,209,614.80-520,548.90

Finding the Fourth Proportional to 2,139,764.82, 3,209,614.80 and 520,548.90

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Solution

The fourth proportional to 2,139,764.82, 3,209,614.80 and 520,548.90 is: 780,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,764.82 : 3,209,614.80 = 520,548.90 : x
  2. Step 2: Convert to fraction form
    2,139,764.82/3,209,614.80 = 520,548.90/x
  3. Step 3: Cross multiply
    2,139,764.82x = 3,209,614.80 × 520,548.90
  4. Step 4: Simplify right side
    2,139,764.82x = 1,670,761,453,563.72
  5. Step 5: Solve for x
    x = 1,670,761,453,563.72/2,139,764.82
  6. Step 6: Final answer
    x = 780,815.46

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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.