Home / 682,443.60-1,023,742.20-209,125.20

Finding the Fourth Proportional to 682,443.60, 1,023,742.20 and 209,125.20

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Solution

The fourth proportional to 682,443.60, 1,023,742.20 and 209,125.20 is: 313,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,443.60 : 1,023,742.20 = 209,125.20 : x
  2. Step 2: Convert to fraction form
    682,443.60/1,023,742.20 = 209,125.20/x
  3. Step 3: Cross multiply
    682,443.60x = 1,023,742.20 × 209,125.20
  4. Step 4: Simplify right side
    682,443.60x = 214,090,292,323.44
  5. Step 5: Solve for x
    x = 214,090,292,323.44/682,443.60
  6. Step 6: Final answer
    x = 313,711.33

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1.5x scale

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.