Home / 1,214,700.39-1,821,863.79-405,099

Finding the Fourth Proportional to 1,214,700.39, 1,821,863.79 and 405,099

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Solution

The fourth proportional to 1,214,700.39, 1,821,863.79 and 405,099 is: 607,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,700.39 : 1,821,863.79 = 405,099 : x
  2. Step 2: Convert to fraction form
    1,214,700.39/1,821,863.79 = 405,099/x
  3. Step 3: Cross multiply
    1,214,700.39x = 1,821,863.79 × 405,099
  4. Step 4: Simplify right side
    1,214,700.39x = 738,035,199,465.21
  5. Step 5: Solve for x
    x = 738,035,199,465.21/1,214,700.39
  6. Step 6: Final answer
    x = 607,586.20

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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.