Home / 764,574.91-1,055,273.91-484,991.26

Finding the Fourth Proportional to 764,574.91, 1,055,273.91 and 484,991.26

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Solution

The fourth proportional to 764,574.91, 1,055,273.91 and 484,991.26 is: 669,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,574.91 : 1,055,273.91 = 484,991.26 : x
  2. Step 2: Convert to fraction form
    764,574.91/1,055,273.91 = 484,991.26/x
  3. Step 3: Cross multiply
    764,574.91x = 1,055,273.91 × 484,991.26
  4. Step 4: Simplify right side
    764,574.91x = 511,798,620,617.84
  5. Step 5: Solve for x
    x = 511,798,620,617.84/764,574.91
  6. Step 6: Final answer
    x = 669,389.77

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Double scale
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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.