Home / 810,143.64-1,118,093.22-488,016.36

Finding the Fourth Proportional to 810,143.64, 1,118,093.22 and 488,016.36

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Solution

The fourth proportional to 810,143.64, 1,118,093.22 and 488,016.36 is: 673,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,143.64 : 1,118,093.22 = 488,016.36 : x
  2. Step 2: Convert to fraction form
    810,143.64/1,118,093.22 = 488,016.36/x
  3. Step 3: Cross multiply
    810,143.64x = 1,118,093.22 × 488,016.36
  4. Step 4: Simplify right side
    810,143.64x = 545,647,783,365.08
  5. Step 5: Solve for x
    x = 545,647,783,365.08/810,143.64
  6. Step 6: Final answer
    x = 673,519.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.