Home / 809,409.79-1,116,971.34-446,824.33

Finding the Fourth Proportional to 809,409.79, 1,116,971.34 and 446,824.33

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Solution

The fourth proportional to 809,409.79, 1,116,971.34 and 446,824.33 is: 616,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,409.79 : 1,116,971.34 = 446,824.33 : x
  2. Step 2: Convert to fraction form
    809,409.79/1,116,971.34 = 446,824.33/x
  3. Step 3: Cross multiply
    809,409.79x = 1,116,971.34 × 446,824.33
  4. Step 4: Simplify right side
    809,409.79x = 499,089,966,156.68
  5. Step 5: Solve for x
    x = 499,089,966,156.68/809,409.79
  6. Step 6: Final answer
    x = 616,609.75

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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.