Home / 3,986,000.40-5,979,000.60-1,860,236.40

Finding the Fourth Proportional to 3,986,000.40, 5,979,000.60 and 1,860,236.40

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Solution

The fourth proportional to 3,986,000.40, 5,979,000.60 and 1,860,236.40 is: 2,790,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,000.40 : 5,979,000.60 = 1,860,236.40 : x
  2. Step 2: Convert to fraction form
    3,986,000.40/5,979,000.60 = 1,860,236.40/x
  3. Step 3: Cross multiply
    3,986,000.40x = 5,979,000.60 × 1,860,236.40
  4. Step 4: Simplify right side
    3,986,000.40x = 11,122,354,551,741.84
  5. Step 5: Solve for x
    x = 11,122,354,551,741.84/3,986,000.40
  6. Step 6: Final answer
    x = 2,790,354.60

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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.