Home / 3,781,615.80-5,672,942.10-1,257,007.80

Finding the Fourth Proportional to 3,781,615.80, 5,672,942.10 and 1,257,007.80

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Solution

The fourth proportional to 3,781,615.80, 5,672,942.10 and 1,257,007.80 is: 1,885,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,615.80 : 5,672,942.10 = 1,257,007.80 : x
  2. Step 2: Convert to fraction form
    3,781,615.80/5,672,942.10 = 1,257,007.80/x
  3. Step 3: Cross multiply
    3,781,615.80x = 5,672,942.10 × 1,257,007.80
  4. Step 4: Simplify right side
    3,781,615.80x = 7,130,932,468,648.38
  5. Step 5: Solve for x
    x = 7,130,932,468,648.38/3,781,615.80
  6. Step 6: Final answer
    x = 1,885,684.02

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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.