Home / 809,493.60-1,214,018.74-304,015.48

Finding the Fourth Proportional to 809,493.60, 1,214,018.74 and 304,015.48

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Solution

The fourth proportional to 809,493.60, 1,214,018.74 and 304,015.48 is: 455,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,493.60 : 1,214,018.74 = 304,015.48 : x
  2. Step 2: Convert to fraction form
    809,493.60/1,214,018.74 = 304,015.48/x
  3. Step 3: Cross multiply
    809,493.60x = 1,214,018.74 × 304,015.48
  4. Step 4: Simplify right side
    809,493.60x = 369,080,485,604.98
  5. Step 5: Solve for x
    x = 369,080,485,604.98/809,493.60
  6. Step 6: Final answer
    x = 455,939.97

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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.