Home / 764,028.20-1,146,272.70-409,212.20

Finding the Fourth Proportional to 764,028.20, 1,146,272.70 and 409,212.20

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Solution

The fourth proportional to 764,028.20, 1,146,272.70 and 409,212.20 is: 613,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,028.20 : 1,146,272.70 = 409,212.20 : x
  2. Step 2: Convert to fraction form
    764,028.20/1,146,272.70 = 409,212.20/x
  3. Step 3: Cross multiply
    764,028.20x = 1,146,272.70 × 409,212.20
  4. Step 4: Simplify right side
    764,028.20x = 469,068,773,366.94
  5. Step 5: Solve for x
    x = 469,068,773,366.94/764,028.20
  6. Step 6: Final answer
    x = 613,941.70

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Double scale
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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.