Home / 2,102,571.20-3,152,128.80-905,412.80

Finding the Fourth Proportional to 2,102,571.20, 3,152,128.80 and 905,412.80

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Solution

The fourth proportional to 2,102,571.20, 3,152,128.80 and 905,412.80 is: 1,357,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,571.20 : 3,152,128.80 = 905,412.80 : x
  2. Step 2: Convert to fraction form
    2,102,571.20/3,152,128.80 = 905,412.80/x
  3. Step 3: Cross multiply
    2,102,571.20x = 3,152,128.80 × 905,412.80
  4. Step 4: Simplify right side
    2,102,571.20x = 2,853,977,762,768.64
  5. Step 5: Solve for x
    x = 2,853,977,762,768.64/2,102,571.20
  6. Step 6: Final answer
    x = 1,357,375.09

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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.