Home / 807,500.46-1,211,255.28-208,420.67

Finding the Fourth Proportional to 807,500.46, 1,211,255.28 and 208,420.67

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Solution

The fourth proportional to 807,500.46, 1,211,255.28 and 208,420.67 is: 312,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,500.46 : 1,211,255.28 = 208,420.67 : x
  2. Step 2: Convert to fraction form
    807,500.46/1,211,255.28 = 208,420.67/x
  3. Step 3: Cross multiply
    807,500.46x = 1,211,255.28 × 208,420.67
  4. Step 4: Simplify right side
    807,500.46x = 252,450,630,160.78
  5. Step 5: Solve for x
    x = 252,450,630,160.78/807,500.46
  6. Step 6: Final answer
    x = 312,632.18

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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.