Home / 685,350.42-1,027,692.58-343,647.04

Finding the Fourth Proportional to 685,350.42, 1,027,692.58 and 343,647.04

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Solution

The fourth proportional to 685,350.42, 1,027,692.58 and 343,647.04 is: 515,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,350.42 : 1,027,692.58 = 343,647.04 : x
  2. Step 2: Convert to fraction form
    685,350.42/1,027,692.58 = 343,647.04/x
  3. Step 3: Cross multiply
    685,350.42x = 1,027,692.58 × 343,647.04
  4. Step 4: Simplify right side
    685,350.42x = 353,163,512,289.88
  5. Step 5: Solve for x
    x = 353,163,512,289.88/685,350.42
  6. Step 6: Final answer
    x = 515,303.56

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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.