Home / 764,580.81-1,055,282.05-484,997.16

Finding the Fourth Proportional to 764,580.81, 1,055,282.05 and 484,997.16

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Solution

The fourth proportional to 764,580.81, 1,055,282.05 and 484,997.16 is: 669,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,580.81 : 1,055,282.05 = 484,997.16 : x
  2. Step 2: Convert to fraction form
    764,580.81/1,055,282.05 = 484,997.16/x
  3. Step 3: Cross multiply
    764,580.81x = 1,055,282.05 × 484,997.16
  4. Step 4: Simplify right side
    764,580.81x = 511,808,801,812.53
  5. Step 5: Solve for x
    x = 511,808,801,812.53/764,580.81
  6. Step 6: Final answer
    x = 669,397.91

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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.