Home / 445,912.36-669,087.24-209,274.28

Finding the Fourth Proportional to 445,912.36, 669,087.24 and 209,274.28

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Solution

The fourth proportional to 445,912.36, 669,087.24 and 209,274.28 is: 314,014.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,912.36 : 669,087.24 = 209,274.28 : x
  2. Step 2: Convert to fraction form
    445,912.36/669,087.24 = 209,274.28/x
  3. Step 3: Cross multiply
    445,912.36x = 669,087.24 × 209,274.28
  4. Step 4: Simplify right side
    445,912.36x = 140,022,750,408.19
  5. Step 5: Solve for x
    x = 140,022,750,408.19/445,912.36
  6. Step 6: Final answer
    x = 314,014.06

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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.