Home / 2,145,115.40-3,218,105.10-628,795.40

Finding the Fourth Proportional to 2,145,115.40, 3,218,105.10 and 628,795.40

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Solution

The fourth proportional to 2,145,115.40, 3,218,105.10 and 628,795.40 is: 943,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,115.40 : 3,218,105.10 = 628,795.40 : x
  2. Step 2: Convert to fraction form
    2,145,115.40/3,218,105.10 = 628,795.40/x
  3. Step 3: Cross multiply
    2,145,115.40x = 3,218,105.10 × 628,795.40
  4. Step 4: Simplify right side
    2,145,115.40x = 2,023,529,683,596.54
  5. Step 5: Solve for x
    x = 2,023,529,683,596.54/2,145,115.40
  6. Step 6: Final answer
    x = 943,319.73

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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.