Home / 764,580.90-1,055,282.20-484,997.26

Finding the Fourth Proportional to 764,580.90, 1,055,282.20 and 484,997.26

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Solution

The fourth proportional to 764,580.90, 1,055,282.20 and 484,997.26 is: 669,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,580.90 : 1,055,282.20 = 484,997.26 : x
  2. Step 2: Convert to fraction form
    764,580.90/1,055,282.20 = 484,997.26/x
  3. Step 3: Cross multiply
    764,580.90x = 1,055,282.20 × 484,997.26
  4. Step 4: Simplify right side
    764,580.90x = 511,808,975,526.77
  5. Step 5: Solve for x
    x = 511,808,975,526.77/764,580.90
  6. Step 6: Final answer
    x = 669,398.07

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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.