Home / 395,297.40-593,003.61-128,992.35

Finding the Fourth Proportional to 395,297.40, 593,003.61 and 128,992.35

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Solution

The fourth proportional to 395,297.40, 593,003.61 and 128,992.35 is: 193,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,297.40 : 593,003.61 = 128,992.35 : x
  2. Step 2: Convert to fraction form
    395,297.40/593,003.61 = 128,992.35/x
  3. Step 3: Cross multiply
    395,297.40x = 593,003.61 × 128,992.35
  4. Step 4: Simplify right side
    395,297.40x = 76,492,929,212.38
  5. Step 5: Solve for x
    x = 76,492,929,212.38/395,297.40
  6. Step 6: Final answer
    x = 193,507.29

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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.