Home / 405,952.11-609,004.71-125,403.75

Finding the Fourth Proportional to 405,952.11, 609,004.71 and 125,403.75

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Solution

The fourth proportional to 405,952.11, 609,004.71 and 125,403.75 is: 188,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,952.11 : 609,004.71 = 125,403.75 : x
  2. Step 2: Convert to fraction form
    405,952.11/609,004.71 = 125,403.75/x
  3. Step 3: Cross multiply
    405,952.11x = 609,004.71 × 125,403.75
  4. Step 4: Simplify right side
    405,952.11x = 76,371,474,401.66
  5. Step 5: Solve for x
    x = 76,371,474,401.66/405,952.11
  6. Step 6: Final answer
    x = 188,129.27

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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.