Home / 764,982.24-1,055,669.66-420,810.76

Finding the Fourth Proportional to 764,982.24, 1,055,669.66 and 420,810.76

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Solution

The fourth proportional to 764,982.24, 1,055,669.66 and 420,810.76 is: 580,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,982.24 : 1,055,669.66 = 420,810.76 : x
  2. Step 2: Convert to fraction form
    764,982.24/1,055,669.66 = 420,810.76/x
  3. Step 3: Cross multiply
    764,982.24x = 1,055,669.66 × 420,810.76
  4. Step 4: Simplify right side
    764,982.24x = 444,237,152,727.12
  5. Step 5: Solve for x
    x = 444,237,152,727.12/764,982.24
  6. Step 6: Final answer
    x = 580,715.64

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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.