Home / 1,485,806.40-2,228,709.60-420,834.60

Finding the Fourth Proportional to 1,485,806.40, 2,228,709.60 and 420,834.60

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Solution

The fourth proportional to 1,485,806.40, 2,228,709.60 and 420,834.60 is: 631,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,806.40 : 2,228,709.60 = 420,834.60 : x
  2. Step 2: Convert to fraction form
    1,485,806.40/2,228,709.60 = 420,834.60/x
  3. Step 3: Cross multiply
    1,485,806.40x = 2,228,709.60 × 420,834.60
  4. Step 4: Simplify right side
    1,485,806.40x = 937,918,113,032.16
  5. Step 5: Solve for x
    x = 937,918,113,032.16/1,485,806.40
  6. Step 6: Final answer
    x = 631,251.90

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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.