Home / 667,748.70-1,001,623.05-418,916.70

Finding the Fourth Proportional to 667,748.70, 1,001,623.05 and 418,916.70

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Solution

The fourth proportional to 667,748.70, 1,001,623.05 and 418,916.70 is: 628,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,748.70 : 1,001,623.05 = 418,916.70 : x
  2. Step 2: Convert to fraction form
    667,748.70/1,001,623.05 = 418,916.70/x
  3. Step 3: Cross multiply
    667,748.70x = 1,001,623.05 × 418,916.70
  4. Step 4: Simplify right side
    667,748.70x = 419,596,622,749.94
  5. Step 5: Solve for x
    x = 419,596,622,749.94/667,748.70
  6. Step 6: Final answer
    x = 628,375.05

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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.