Home / 682,328.21-1,023,689.07-209,083.28

Finding the Fourth Proportional to 682,328.21, 1,023,689.07 and 209,083.28

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Solution

The fourth proportional to 682,328.21, 1,023,689.07 and 209,083.28 is: 313,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,328.21 : 1,023,689.07 = 209,083.28 : x
  2. Step 2: Convert to fraction form
    682,328.21/1,023,689.07 = 209,083.28/x
  3. Step 3: Cross multiply
    682,328.21x = 1,023,689.07 × 209,083.28
  4. Step 4: Simplify right side
    682,328.21x = 214,036,263,337.30
  5. Step 5: Solve for x
    x = 214,036,263,337.30/682,328.21
  6. Step 6: Final answer
    x = 313,685.21

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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.