Home / 830,522.20-1,243,709.70-548,512.60

Finding the Fourth Proportional to 830,522.20, 1,243,709.70 and 548,512.60

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Solution

The fourth proportional to 830,522.20, 1,243,709.70 and 548,512.60 is: 821,399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,522.20 : 1,243,709.70 = 548,512.60 : x
  2. Step 2: Convert to fraction form
    830,522.20/1,243,709.70 = 548,512.60/x
  3. Step 3: Cross multiply
    830,522.20x = 1,243,709.70 × 548,512.60
  4. Step 4: Simplify right side
    830,522.20x = 682,190,441,192.22
  5. Step 5: Solve for x
    x = 682,190,441,192.22/830,522.20
  6. Step 6: Final answer
    x = 821,399.41

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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.