Home / 693,102.60-1,039,556.70-219,835.80

Finding the Fourth Proportional to 693,102.60, 1,039,556.70 and 219,835.80

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Solution

The fourth proportional to 693,102.60, 1,039,556.70 and 219,835.80 is: 329,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,102.60 : 1,039,556.70 = 219,835.80 : x
  2. Step 2: Convert to fraction form
    693,102.60/1,039,556.70 = 219,835.80/x
  3. Step 3: Cross multiply
    693,102.60x = 1,039,556.70 × 219,835.80
  4. Step 4: Simplify right side
    693,102.60x = 228,531,778,789.86
  5. Step 5: Solve for x
    x = 228,531,778,789.86/693,102.60
  6. Step 6: Final answer
    x = 329,722.87

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1.5x scale

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.