Home / 1,111,856.40-1,667,784.60-401,907.60

Finding the Fourth Proportional to 1,111,856.40, 1,667,784.60 and 401,907.60

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Solution

The fourth proportional to 1,111,856.40, 1,667,784.60 and 401,907.60 is: 602,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,856.40 : 1,667,784.60 = 401,907.60 : x
  2. Step 2: Convert to fraction form
    1,111,856.40/1,667,784.60 = 401,907.60/x
  3. Step 3: Cross multiply
    1,111,856.40x = 1,667,784.60 × 401,907.60
  4. Step 4: Simplify right side
    1,111,856.40x = 670,295,305,902.96
  5. Step 5: Solve for x
    x = 670,295,305,902.96/1,111,856.40
  6. Step 6: Final answer
    x = 602,861.40

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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.