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Finding the Fourth Proportional to 1,297,223.58, 1,945,939.05 and 455,964.06

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Solution

The fourth proportional to 1,297,223.58, 1,945,939.05 and 455,964.06 is: 683,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,223.58 : 1,945,939.05 = 455,964.06 : x
  2. Step 2: Convert to fraction form
    1,297,223.58/1,945,939.05 = 455,964.06/x
  3. Step 3: Cross multiply
    1,297,223.58x = 1,945,939.05 × 455,964.06
  4. Step 4: Simplify right side
    1,297,223.58x = 887,278,269,750.54
  5. Step 5: Solve for x
    x = 887,278,269,750.54/1,297,223.58
  6. Step 6: Final answer
    x = 683,982.53

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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.