Home / 1,209,885.20-1,814,827.80-789,635.60

Finding the Fourth Proportional to 1,209,885.20, 1,814,827.80 and 789,635.60

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Solution

The fourth proportional to 1,209,885.20, 1,814,827.80 and 789,635.60 is: 1,184,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,885.20 : 1,814,827.80 = 789,635.60 : x
  2. Step 2: Convert to fraction form
    1,209,885.20/1,814,827.80 = 789,635.60/x
  3. Step 3: Cross multiply
    1,209,885.20x = 1,814,827.80 × 789,635.60
  4. Step 4: Simplify right side
    1,209,885.20x = 1,433,052,638,749.68
  5. Step 5: Solve for x
    x = 1,433,052,638,749.68/1,209,885.20
  6. Step 6: Final answer
    x = 1,184,453.40

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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.