Home / 671,736.08-1,007,926.72-418,951.69

Finding the Fourth Proportional to 671,736.08, 1,007,926.72 and 418,951.69

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Solution

The fourth proportional to 671,736.08, 1,007,926.72 and 418,951.69 is: 628,628.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,736.08 : 1,007,926.72 = 418,951.69 : x
  2. Step 2: Convert to fraction form
    671,736.08/1,007,926.72 = 418,951.69/x
  3. Step 3: Cross multiply
    671,736.08x = 1,007,926.72 × 418,951.69
  4. Step 4: Simplify right side
    671,736.08x = 422,272,599,172.96
  5. Step 5: Solve for x
    x = 422,272,599,172.96/671,736.08
  6. Step 6: Final answer
    x = 628,628.73

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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.