Home / 395,928.80-593,893.20-115,474.40

Finding the Fourth Proportional to 395,928.80, 593,893.20 and 115,474.40

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Solution

The fourth proportional to 395,928.80, 593,893.20 and 115,474.40 is: 173,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,928.80 : 593,893.20 = 115,474.40 : x
  2. Step 2: Convert to fraction form
    395,928.80/593,893.20 = 115,474.40/x
  3. Step 3: Cross multiply
    395,928.80x = 593,893.20 × 115,474.40
  4. Step 4: Simplify right side
    395,928.80x = 68,579,460,934.08
  5. Step 5: Solve for x
    x = 68,579,460,934.08/395,928.80
  6. Step 6: Final answer
    x = 173,211.60

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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.