Home / 764,448.20-1,146,902.70-409,632.20

Finding the Fourth Proportional to 764,448.20, 1,146,902.70 and 409,632.20

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Solution

The fourth proportional to 764,448.20, 1,146,902.70 and 409,632.20 is: 614,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,448.20 : 1,146,902.70 = 409,632.20 : x
  2. Step 2: Convert to fraction form
    764,448.20/1,146,902.70 = 409,632.20/x
  3. Step 3: Cross multiply
    764,448.20x = 1,146,902.70 × 409,632.20
  4. Step 4: Simplify right side
    764,448.20x = 469,808,276,186.94
  5. Step 5: Solve for x
    x = 469,808,276,186.94/764,448.20
  6. Step 6: Final answer
    x = 614,571.76

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.