Home / 787,128.60-1,180,692.90-629,664.60

Finding the Fourth Proportional to 787,128.60, 1,180,692.90 and 629,664.60

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Solution

The fourth proportional to 787,128.60, 1,180,692.90 and 629,664.60 is: 944,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,128.60 : 1,180,692.90 = 629,664.60 : x
  2. Step 2: Convert to fraction form
    787,128.60/1,180,692.90 = 629,664.60/x
  3. Step 3: Cross multiply
    787,128.60x = 1,180,692.90 × 629,664.60
  4. Step 4: Simplify right side
    787,128.60x = 743,440,522,601.34
  5. Step 5: Solve for x
    x = 743,440,522,601.34/787,128.60
  6. Step 6: Final answer
    x = 944,496.90

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Similar ratio
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1.5x scale

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.