Home / 2,128,219.60-3,193,495.80-866,952.40

Finding the Fourth Proportional to 2,128,219.60, 3,193,495.80 and 866,952.40

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Solution

The fourth proportional to 2,128,219.60, 3,193,495.80 and 866,952.40 is: 1,300,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,219.60 : 3,193,495.80 = 866,952.40 : x
  2. Step 2: Convert to fraction form
    2,128,219.60/3,193,495.80 = 866,952.40/x
  3. Step 3: Cross multiply
    2,128,219.60x = 3,193,495.80 × 866,952.40
  4. Step 4: Simplify right side
    2,128,219.60x = 2,768,608,848,199.92
  5. Step 5: Solve for x
    x = 2,768,608,848,199.92/2,128,219.60
  6. Step 6: Final answer
    x = 1,300,903.75

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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.