Home / 764,174.27-1,054,571.44-420,042.05

Finding the Fourth Proportional to 764,174.27, 1,054,571.44 and 420,042.05

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Solution

The fourth proportional to 764,174.27, 1,054,571.44 and 420,042.05 is: 579,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,174.27 : 1,054,571.44 = 420,042.05 : x
  2. Step 2: Convert to fraction form
    764,174.27/1,054,571.44 = 420,042.05/x
  3. Step 3: Cross multiply
    764,174.27x = 1,054,571.44 × 420,042.05
  4. Step 4: Simplify right side
    764,174.27x = 442,964,355,061.64
  5. Step 5: Solve for x
    x = 442,964,355,061.64/764,174.27
  6. Step 6: Final answer
    x = 579,664.06

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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.