Home / 405,215.54-607,777.23-109,704.50

Finding the Fourth Proportional to 405,215.54, 607,777.23 and 109,704.50

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Solution

The fourth proportional to 405,215.54, 607,777.23 and 109,704.50 is: 164,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,215.54 : 607,777.23 = 109,704.50 : x
  2. Step 2: Convert to fraction form
    405,215.54/607,777.23 = 109,704.50/x
  3. Step 3: Cross multiply
    405,215.54x = 607,777.23 × 109,704.50
  4. Step 4: Simplify right side
    405,215.54x = 66,675,897,128.54
  5. Step 5: Solve for x
    x = 66,675,897,128.54/405,215.54
  6. Step 6: Final answer
    x = 164,544.27

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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.