Home / 1,080,775.30-1,621,446.87-388,412.16

Finding the Fourth Proportional to 1,080,775.30, 1,621,446.87 and 388,412.16

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Solution

The fourth proportional to 1,080,775.30, 1,621,446.87 and 388,412.16 is: 582,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,775.30 : 1,621,446.87 = 388,412.16 : x
  2. Step 2: Convert to fraction form
    1,080,775.30/1,621,446.87 = 388,412.16/x
  3. Step 3: Cross multiply
    1,080,775.30x = 1,621,446.87 × 388,412.16
  4. Step 4: Simplify right side
    1,080,775.30x = 629,789,681,101.94
  5. Step 5: Solve for x
    x = 629,789,681,101.94/1,080,775.30
  6. Step 6: Final answer
    x = 582,720.28

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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.