Home / 1,405,399.62-1,939,452.09-760,819.79

Finding the Fourth Proportional to 1,405,399.62, 1,939,452.09 and 760,819.79

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Solution

The fourth proportional to 1,405,399.62, 1,939,452.09 and 760,819.79 is: 1,049,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,399.62 : 1,939,452.09 = 760,819.79 : x
  2. Step 2: Convert to fraction form
    1,405,399.62/1,939,452.09 = 760,819.79/x
  3. Step 3: Cross multiply
    1,405,399.62x = 1,939,452.09 × 760,819.79
  4. Step 4: Simplify right side
    1,405,399.62x = 1,475,573,522,131.60
  5. Step 5: Solve for x
    x = 1,475,573,522,131.60/1,405,399.62
  6. Step 6: Final answer
    x = 1,049,931.64

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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.