Home / 667,915.13-1,002,201.26-312,867.77

Finding the Fourth Proportional to 667,915.13, 1,002,201.26 and 312,867.77

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Solution

The fourth proportional to 667,915.13, 1,002,201.26 and 312,867.77 is: 469,455.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,915.13 : 1,002,201.26 = 312,867.77 : x
  2. Step 2: Convert to fraction form
    667,915.13/1,002,201.26 = 312,867.77/x
  3. Step 3: Cross multiply
    667,915.13x = 1,002,201.26 × 312,867.77
  4. Step 4: Simplify right side
    667,915.13x = 313,556,473,307.39
  5. Step 5: Solve for x
    x = 313,556,473,307.39/667,915.13
  6. Step 6: Final answer
    x = 469,455.56

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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.