Home / 1,297,997.20-1,945,829.40-824,438.80

Finding the Fourth Proportional to 1,297,997.20, 1,945,829.40 and 824,438.80

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Solution

The fourth proportional to 1,297,997.20, 1,945,829.40 and 824,438.80 is: 1,235,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,997.20 : 1,945,829.40 = 824,438.80 : x
  2. Step 2: Convert to fraction form
    1,297,997.20/1,945,829.40 = 824,438.80/x
  3. Step 3: Cross multiply
    1,297,997.20x = 1,945,829.40 × 824,438.80
  4. Step 4: Simplify right side
    1,297,997.20x = 1,604,217,255,540.72
  5. Step 5: Solve for x
    x = 1,604,217,255,540.72/1,297,997.20
  6. Step 6: Final answer
    x = 1,235,917.35

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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.