Home / 764,933.10-1,055,608.74-425,401.35

Finding the Fourth Proportional to 764,933.10, 1,055,608.74 and 425,401.35

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Solution

The fourth proportional to 764,933.10, 1,055,608.74 and 425,401.35 is: 587,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,933.10 : 1,055,608.74 = 425,401.35 : x
  2. Step 2: Convert to fraction form
    764,933.10/1,055,608.74 = 425,401.35/x
  3. Step 3: Cross multiply
    764,933.10x = 1,055,608.74 × 425,401.35
  4. Step 4: Simplify right side
    764,933.10x = 449,057,383,067.80
  5. Step 5: Solve for x
    x = 449,057,383,067.80/764,933.10
  6. Step 6: Final answer
    x = 587,054.45

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1.5x scale

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.