Home / 677,311.83-1,015,578.95-203,857.11

Finding the Fourth Proportional to 677,311.83, 1,015,578.95 and 203,857.11

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Solution

The fourth proportional to 677,311.83, 1,015,578.95 and 203,857.11 is: 305,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,311.83 : 1,015,578.95 = 203,857.11 : x
  2. Step 2: Convert to fraction form
    677,311.83/1,015,578.95 = 203,857.11/x
  3. Step 3: Cross multiply
    677,311.83x = 1,015,578.95 × 203,857.11
  4. Step 4: Simplify right side
    677,311.83x = 207,032,988,704.55
  5. Step 5: Solve for x
    x = 207,032,988,704.55/677,311.83
  6. Step 6: Final answer
    x = 305,668.64

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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.