Home / 685,375.52-1,028,173.44-235,985.90

Finding the Fourth Proportional to 685,375.52, 1,028,173.44 and 235,985.90

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Solution

The fourth proportional to 685,375.52, 1,028,173.44 and 235,985.90 is: 354,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,375.52 : 1,028,173.44 = 235,985.90 : x
  2. Step 2: Convert to fraction form
    685,375.52/1,028,173.44 = 235,985.90/x
  3. Step 3: Cross multiply
    685,375.52x = 1,028,173.44 × 235,985.90
  4. Step 4: Simplify right side
    685,375.52x = 242,634,434,594.50
  5. Step 5: Solve for x
    x = 242,634,434,594.50/685,375.52
  6. Step 6: Final answer
    x = 354,016.78

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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.