Home / 780,362.92-1,170,545.87-300,816.54

Finding the Fourth Proportional to 780,362.92, 1,170,545.87 and 300,816.54

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Solution

The fourth proportional to 780,362.92, 1,170,545.87 and 300,816.54 is: 451,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,362.92 : 1,170,545.87 = 300,816.54 : x
  2. Step 2: Convert to fraction form
    780,362.92/1,170,545.87 = 300,816.54/x
  3. Step 3: Cross multiply
    780,362.92x = 1,170,545.87 × 300,816.54
  4. Step 4: Simplify right side
    780,362.92x = 352,119,558,524.69
  5. Step 5: Solve for x
    x = 352,119,558,524.69/780,362.92
  6. Step 6: Final answer
    x = 451,225.38

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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.