Home / 1,214,768.55-1,821,965.52-405,167.10

Finding the Fourth Proportional to 1,214,768.55, 1,821,965.52 and 405,167.10

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Solution

The fourth proportional to 1,214,768.55, 1,821,965.52 and 405,167.10 is: 607,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,768.55 : 1,821,965.52 = 405,167.10 : x
  2. Step 2: Convert to fraction form
    1,214,768.55/1,821,965.52 = 405,167.10/x
  3. Step 3: Cross multiply
    1,214,768.55x = 1,821,965.52 × 405,167.10
  4. Step 4: Simplify right side
    1,214,768.55x = 738,200,486,038.39
  5. Step 5: Solve for x
    x = 738,200,486,038.39/1,214,768.55
  6. Step 6: Final answer
    x = 607,688.18

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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.