Home / 392,928.15-589,396.34-314,540.67

Finding the Fourth Proportional to 392,928.15, 589,396.34 and 314,540.67

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Solution

The fourth proportional to 392,928.15, 589,396.34 and 314,540.67 is: 471,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,928.15 : 589,396.34 = 314,540.67 : x
  2. Step 2: Convert to fraction form
    392,928.15/589,396.34 = 314,540.67/x
  3. Step 3: Cross multiply
    392,928.15x = 589,396.34 × 314,540.67
  4. Step 4: Simplify right side
    392,928.15x = 185,389,119,679.15
  5. Step 5: Solve for x
    x = 185,389,119,679.15/392,928.15
  6. Step 6: Final answer
    x = 471,814.30

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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.