Home / 764,781.27-1,146,138.52-291,208.29

Finding the Fourth Proportional to 764,781.27, 1,146,138.52 and 291,208.29

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Solution

The fourth proportional to 764,781.27, 1,146,138.52 and 291,208.29 is: 436,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,781.27 : 1,146,138.52 = 291,208.29 : x
  2. Step 2: Convert to fraction form
    764,781.27/1,146,138.52 = 291,208.29/x
  3. Step 3: Cross multiply
    764,781.27x = 1,146,138.52 × 291,208.29
  4. Step 4: Simplify right side
    764,781.27x = 333,765,038,512.33
  5. Step 5: Solve for x
    x = 333,765,038,512.33/764,781.27
  6. Step 6: Final answer
    x = 436,418.95

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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.