Home / 764,896.80-1,055,455.20-425,299.68

Finding the Fourth Proportional to 764,896.80, 1,055,455.20 and 425,299.68

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Solution

The fourth proportional to 764,896.80, 1,055,455.20 and 425,299.68 is: 586,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,896.80 : 1,055,455.20 = 425,299.68 : x
  2. Step 2: Convert to fraction form
    764,896.80/1,055,455.20 = 425,299.68/x
  3. Step 3: Cross multiply
    764,896.80x = 1,055,455.20 × 425,299.68
  4. Step 4: Simplify right side
    764,896.80x = 448,884,758,814.34
  5. Step 5: Solve for x
    x = 448,884,758,814.34/764,896.80
  6. Step 6: Final answer
    x = 586,856.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.