Home / 405,982.38-609,031.92-125,521.50

Finding the Fourth Proportional to 405,982.38, 609,031.92 and 125,521.50

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Solution

The fourth proportional to 405,982.38, 609,031.92 and 125,521.50 is: 188,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,982.38 : 609,031.92 = 125,521.50 : x
  2. Step 2: Convert to fraction form
    405,982.38/609,031.92 = 125,521.50/x
  3. Step 3: Cross multiply
    405,982.38x = 609,031.92 × 125,521.50
  4. Step 4: Simplify right side
    405,982.38x = 76,446,600,146.28
  5. Step 5: Solve for x
    x = 76,446,600,146.28/405,982.38
  6. Step 6: Final answer
    x = 188,300.29

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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.