Home / 738,493.80-1,107,072.45-513,961.80

Finding the Fourth Proportional to 738,493.80, 1,107,072.45 and 513,961.80

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Solution

The fourth proportional to 738,493.80, 1,107,072.45 and 513,961.80 is: 770,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,493.80 : 1,107,072.45 = 513,961.80 : x
  2. Step 2: Convert to fraction form
    738,493.80/1,107,072.45 = 513,961.80/x
  3. Step 3: Cross multiply
    738,493.80x = 1,107,072.45 × 513,961.80
  4. Step 4: Simplify right side
    738,493.80x = 568,992,949,132.41
  5. Step 5: Solve for x
    x = 568,992,949,132.41/738,493.80
  6. Step 6: Final answer
    x = 770,477.63

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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.