Home / 1,390,682.20-2,086,023.30-548,800.60

Finding the Fourth Proportional to 1,390,682.20, 2,086,023.30 and 548,800.60

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Solution

The fourth proportional to 1,390,682.20, 2,086,023.30 and 548,800.60 is: 823,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,682.20 : 2,086,023.30 = 548,800.60 : x
  2. Step 2: Convert to fraction form
    1,390,682.20/2,086,023.30 = 548,800.60/x
  3. Step 3: Cross multiply
    1,390,682.20x = 2,086,023.30 × 548,800.60
  4. Step 4: Simplify right side
    1,390,682.20x = 1,144,810,838,653.98
  5. Step 5: Solve for x
    x = 1,144,810,838,653.98/1,390,682.20
  6. Step 6: Final answer
    x = 823,200.90

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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.