Home / 789,555.20-1,089,692.80-445,461.73

Finding the Fourth Proportional to 789,555.20, 1,089,692.80 and 445,461.73

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Solution

The fourth proportional to 789,555.20, 1,089,692.80 and 445,461.73 is: 614,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,555.20 : 1,089,692.80 = 445,461.73 : x
  2. Step 2: Convert to fraction form
    789,555.20/1,089,692.80 = 445,461.73/x
  3. Step 3: Cross multiply
    789,555.20x = 1,089,692.80 × 445,461.73
  4. Step 4: Simplify right side
    789,555.20x = 485,416,440,615.80
  5. Step 5: Solve for x
    x = 485,416,440,615.80/789,555.20
  6. Step 6: Final answer
    x = 614,797.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.