Home / 777,348.75-1,166,645.20-403,478.67

Finding the Fourth Proportional to 777,348.75, 1,166,645.20 and 403,478.67

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Solution

The fourth proportional to 777,348.75, 1,166,645.20 and 403,478.67 is: 605,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,348.75 : 1,166,645.20 = 403,478.67 : x
  2. Step 2: Convert to fraction form
    777,348.75/1,166,645.20 = 403,478.67/x
  3. Step 3: Cross multiply
    777,348.75x = 1,166,645.20 × 403,478.67
  4. Step 4: Simplify right side
    777,348.75x = 470,716,453,657.88
  5. Step 5: Solve for x
    x = 470,716,453,657.88/777,348.75
  6. Step 6: Final answer
    x = 605,540.89

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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.