Home / 1,219,220.80-1,825,720.80-970,388.80

Finding the Fourth Proportional to 1,219,220.80, 1,825,720.80 and 970,388.80

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Solution

The fourth proportional to 1,219,220.80, 1,825,720.80 and 970,388.80 is: 1,453,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,220.80 : 1,825,720.80 = 970,388.80 : x
  2. Step 2: Convert to fraction form
    1,219,220.80/1,825,720.80 = 970,388.80/x
  3. Step 3: Cross multiply
    1,219,220.80x = 1,825,720.80 × 970,388.80
  4. Step 4: Simplify right side
    1,219,220.80x = 1,771,659,016,247.04
  5. Step 5: Solve for x
    x = 1,771,659,016,247.04/1,219,220.80
  6. Step 6: Final answer
    x = 1,453,107.60

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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.