Home / 682,457.60-1,023,763.20-209,139.20

Finding the Fourth Proportional to 682,457.60, 1,023,763.20 and 209,139.20

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Solution

The fourth proportional to 682,457.60, 1,023,763.20 and 209,139.20 is: 313,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,457.60 : 1,023,763.20 = 209,139.20 : x
  2. Step 2: Convert to fraction form
    682,457.60/1,023,763.20 = 209,139.20/x
  3. Step 3: Cross multiply
    682,457.60x = 1,023,763.20 × 209,139.20
  4. Step 4: Simplify right side
    682,457.60x = 214,109,016,637.44
  5. Step 5: Solve for x
    x = 214,109,016,637.44/682,457.60
  6. Step 6: Final answer
    x = 313,732.34

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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.