Home / 851,571.02-1,275,910.58-513,902.12

Finding the Fourth Proportional to 851,571.02, 1,275,910.58 and 513,902.12

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Solution

The fourth proportional to 851,571.02, 1,275,910.58 and 513,902.12 is: 769,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,571.02 : 1,275,910.58 = 513,902.12 : x
  2. Step 2: Convert to fraction form
    851,571.02/1,275,910.58 = 513,902.12/x
  3. Step 3: Cross multiply
    851,571.02x = 1,275,910.58 × 513,902.12
  4. Step 4: Simplify right side
    851,571.02x = 655,693,151,992.43
  5. Step 5: Solve for x
    x = 655,693,151,992.43/851,571.02
  6. Step 6: Final answer
    x = 769,980.58

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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.