Home / 782,930.85-1,174,396.91-214,316.67

Finding the Fourth Proportional to 782,930.85, 1,174,396.91 and 214,316.67

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Solution

The fourth proportional to 782,930.85, 1,174,396.91 and 214,316.67 is: 321,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,930.85 : 1,174,396.91 = 214,316.67 : x
  2. Step 2: Convert to fraction form
    782,930.85/1,174,396.91 = 214,316.67/x
  3. Step 3: Cross multiply
    782,930.85x = 1,174,396.91 × 214,316.67
  4. Step 4: Simplify right side
    782,930.85x = 251,692,832,941.44
  5. Step 5: Solve for x
    x = 251,692,832,941.44/782,930.85
  6. Step 6: Final answer
    x = 321,475.18

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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.