Home / 1,200,518.82-1,800,781.27-490,546.86

Finding the Fourth Proportional to 1,200,518.82, 1,800,781.27 and 490,546.86

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Solution

The fourth proportional to 1,200,518.82, 1,800,781.27 and 490,546.86 is: 735,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,518.82 : 1,800,781.27 = 490,546.86 : x
  2. Step 2: Convert to fraction form
    1,200,518.82/1,800,781.27 = 490,546.86/x
  3. Step 3: Cross multiply
    1,200,518.82x = 1,800,781.27 × 490,546.86
  4. Step 4: Simplify right side
    1,200,518.82x = 883,367,595,092.58
  5. Step 5: Solve for x
    x = 883,367,595,092.58/1,200,518.82
  6. Step 6: Final answer
    x = 735,821.53

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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.