Home / 764,383.82-1,146,713.64-314,859.34

Finding the Fourth Proportional to 764,383.82, 1,146,713.64 and 314,859.34

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Solution

The fourth proportional to 764,383.82, 1,146,713.64 and 314,859.34 is: 472,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,383.82 : 1,146,713.64 = 314,859.34 : x
  2. Step 2: Convert to fraction form
    764,383.82/1,146,713.64 = 314,859.34/x
  3. Step 3: Cross multiply
    764,383.82x = 1,146,713.64 × 314,859.34
  4. Step 4: Simplify right side
    764,383.82x = 361,053,492,551.53
  5. Step 5: Solve for x
    x = 361,053,492,551.53/764,383.82
  6. Step 6: Final answer
    x = 472,345.81

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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.