Home / 703,538.90-1,056,720.41-419,783.09

Finding the Fourth Proportional to 703,538.90, 1,056,720.41 and 419,783.09

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Solution

The fourth proportional to 703,538.90, 1,056,720.41 and 419,783.09 is: 630,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,538.90 : 1,056,720.41 = 419,783.09 : x
  2. Step 2: Convert to fraction form
    703,538.90/1,056,720.41 = 419,783.09/x
  3. Step 3: Cross multiply
    703,538.90x = 1,056,720.41 × 419,783.09
  4. Step 4: Simplify right side
    703,538.90x = 443,593,351,593.35
  5. Step 5: Solve for x
    x = 443,593,351,593.35/703,538.90
  6. Step 6: Final answer
    x = 630,517.17

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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.