Home / 764,722.20-1,055,313.14-425,170.20

Finding the Fourth Proportional to 764,722.20, 1,055,313.14 and 425,170.20

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Solution

The fourth proportional to 764,722.20, 1,055,313.14 and 425,170.20 is: 586,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,722.20 : 1,055,313.14 = 425,170.20 : x
  2. Step 2: Convert to fraction form
    764,722.20/1,055,313.14 = 425,170.20/x
  3. Step 3: Cross multiply
    764,722.20x = 1,055,313.14 × 425,170.20
  4. Step 4: Simplify right side
    764,722.20x = 448,687,698,796.43
  5. Step 5: Solve for x
    x = 448,687,698,796.43/764,722.20
  6. Step 6: Final answer
    x = 586,732.93

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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.