Home / 809,944.54-1,117,735.30-470,412.80

Finding the Fourth Proportional to 809,944.54, 1,117,735.30 and 470,412.80

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Solution

The fourth proportional to 809,944.54, 1,117,735.30 and 470,412.80 is: 649,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,944.54 : 1,117,735.30 = 470,412.80 : x
  2. Step 2: Convert to fraction form
    809,944.54/1,117,735.30 = 470,412.80/x
  3. Step 3: Cross multiply
    809,944.54x = 1,117,735.30 × 470,412.80
  4. Step 4: Simplify right side
    809,944.54x = 525,796,992,131.84
  5. Step 5: Solve for x
    x = 525,796,992,131.84/809,944.54
  6. Step 6: Final answer
    x = 649,176.54

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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.