Home / 764,541.78-1,146,678.57-291,255.54

Finding the Fourth Proportional to 764,541.78, 1,146,678.57 and 291,255.54

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Solution

The fourth proportional to 764,541.78, 1,146,678.57 and 291,255.54 is: 436,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,541.78 : 1,146,678.57 = 291,255.54 : x
  2. Step 2: Convert to fraction form
    764,541.78/1,146,678.57 = 291,255.54/x
  3. Step 3: Cross multiply
    764,541.78x = 1,146,678.57 × 291,255.54
  4. Step 4: Simplify right side
    764,541.78x = 333,976,486,111.78
  5. Step 5: Solve for x
    x = 333,976,486,111.78/764,541.78
  6. Step 6: Final answer
    x = 436,832.22

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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.