Home / 591,903.09-816,825.20-319,971.15

Finding the Fourth Proportional to 591,903.09, 816,825.20 and 319,971.15

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Solution

The fourth proportional to 591,903.09, 816,825.20 and 319,971.15 is: 441,559.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,903.09 : 816,825.20 = 319,971.15 : x
  2. Step 2: Convert to fraction form
    591,903.09/816,825.20 = 319,971.15/x
  3. Step 3: Cross multiply
    591,903.09x = 816,825.20 × 319,971.15
  4. Step 4: Simplify right side
    591,903.09x = 261,360,496,993.12
  5. Step 5: Solve for x
    x = 261,360,496,993.12/591,903.09
  6. Step 6: Final answer
    x = 441,559.61

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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.