Home / 405,067.40-607,629.90-124,584.20

Finding the Fourth Proportional to 405,067.40, 607,629.90 and 124,584.20

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Solution

The fourth proportional to 405,067.40, 607,629.90 and 124,584.20 is: 186,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,067.40 : 607,629.90 = 124,584.20 : x
  2. Step 2: Convert to fraction form
    405,067.40/607,629.90 = 124,584.20/x
  3. Step 3: Cross multiply
    405,067.40x = 607,629.90 × 124,584.20
  4. Step 4: Simplify right side
    405,067.40x = 75,701,084,987.58
  5. Step 5: Solve for x
    x = 75,701,084,987.58/405,067.40
  6. Step 6: Final answer
    x = 186,885.16

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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.