Home / 575,029.29-861,438.46-321,540.96

Finding the Fourth Proportional to 575,029.29, 861,438.46 and 321,540.96

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Solution

The fourth proportional to 575,029.29, 861,438.46 and 321,540.96 is: 481,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,029.29 : 861,438.46 = 321,540.96 : x
  2. Step 2: Convert to fraction form
    575,029.29/861,438.46 = 321,540.96/x
  3. Step 3: Cross multiply
    575,029.29x = 861,438.46 × 321,540.96
  4. Step 4: Simplify right side
    575,029.29x = 276,987,749,409.32
  5. Step 5: Solve for x
    x = 276,987,749,409.32/575,029.29
  6. Step 6: Final answer
    x = 481,693.29

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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.