Home / 860,620.20-1,290,930.30-622,847.40

Finding the Fourth Proportional to 860,620.20, 1,290,930.30 and 622,847.40

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Solution

The fourth proportional to 860,620.20, 1,290,930.30 and 622,847.40 is: 934,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,620.20 : 1,290,930.30 = 622,847.40 : x
  2. Step 2: Convert to fraction form
    860,620.20/1,290,930.30 = 622,847.40/x
  3. Step 3: Cross multiply
    860,620.20x = 1,290,930.30 × 622,847.40
  4. Step 4: Simplify right side
    860,620.20x = 804,052,580,936.22
  5. Step 5: Solve for x
    x = 804,052,580,936.22/860,620.20
  6. Step 6: Final answer
    x = 934,271.10

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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.