Home / 1,297,669.20-1,948,472.10-998,487.60

Finding the Fourth Proportional to 1,297,669.20, 1,948,472.10 and 998,487.60

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Solution

The fourth proportional to 1,297,669.20, 1,948,472.10 and 998,487.60 is: 1,499,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,669.20 : 1,948,472.10 = 998,487.60 : x
  2. Step 2: Convert to fraction form
    1,297,669.20/1,948,472.10 = 998,487.60/x
  3. Step 3: Cross multiply
    1,297,669.20x = 1,948,472.10 × 998,487.60
  4. Step 4: Simplify right side
    1,297,669.20x = 1,945,525,230,795.96
  5. Step 5: Solve for x
    x = 1,945,525,230,795.96/1,297,669.20
  6. Step 6: Final answer
    x = 1,499,245.90

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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.