Home / 764,720.79-1,146,410.51-291,091.11

Finding the Fourth Proportional to 764,720.79, 1,146,410.51 and 291,091.11

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Solution

The fourth proportional to 764,720.79, 1,146,410.51 and 291,091.11 is: 436,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,720.79 : 1,146,410.51 = 291,091.11 : x
  2. Step 2: Convert to fraction form
    764,720.79/1,146,410.51 = 291,091.11/x
  3. Step 3: Cross multiply
    764,720.79x = 1,146,410.51 × 291,091.11
  4. Step 4: Simplify right side
    764,720.79x = 333,709,906,416.11
  5. Step 5: Solve for x
    x = 333,709,906,416.11/764,720.79
  6. Step 6: Final answer
    x = 436,381.37

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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.