Home / 591,901.22-816,822.60-319,969.28

Finding the Fourth Proportional to 591,901.22, 816,822.60 and 319,969.28

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Solution

The fourth proportional to 591,901.22, 816,822.60 and 319,969.28 is: 441,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,901.22 : 816,822.60 = 319,969.28 : x
  2. Step 2: Convert to fraction form
    591,901.22/816,822.60 = 319,969.28/x
  3. Step 3: Cross multiply
    591,901.22x = 816,822.60 × 319,969.28
  4. Step 4: Simplify right side
    591,901.22x = 261,358,135,125.62
  5. Step 5: Solve for x
    x = 261,358,135,125.62/591,901.22
  6. Step 6: Final answer
    x = 441,557.02

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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.