Home / 682,421.90-1,023,595.92-209,108.66

Finding the Fourth Proportional to 682,421.90, 1,023,595.92 and 209,108.66

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Solution

The fourth proportional to 682,421.90, 1,023,595.92 and 209,108.66 is: 313,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,421.90 : 1,023,595.92 = 209,108.66 : x
  2. Step 2: Convert to fraction form
    682,421.90/1,023,595.92 = 209,108.66/x
  3. Step 3: Cross multiply
    682,421.90x = 1,023,595.92 × 209,108.66
  4. Step 4: Simplify right side
    682,421.90x = 214,042,771,212.67
  5. Step 5: Solve for x
    x = 214,042,771,212.67/682,421.90
  6. Step 6: Final answer
    x = 313,651.67

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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.