Home / 751,293.20-1,036,782.64-407,138.65

Finding the Fourth Proportional to 751,293.20, 1,036,782.64 and 407,138.65

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Solution

The fourth proportional to 751,293.20, 1,036,782.64 and 407,138.65 is: 561,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,293.20 : 1,036,782.64 = 407,138.65 : x
  2. Step 2: Convert to fraction form
    751,293.20/1,036,782.64 = 407,138.65/x
  3. Step 3: Cross multiply
    751,293.20x = 1,036,782.64 × 407,138.65
  4. Step 4: Simplify right side
    751,293.20x = 422,114,284,393.04
  5. Step 5: Solve for x
    x = 422,114,284,393.04/751,293.20
  6. Step 6: Final answer
    x = 561,850.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.