Home / 682,647.45-1,023,932.88-209,331.51

Finding the Fourth Proportional to 682,647.45, 1,023,932.88 and 209,331.51

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Solution

The fourth proportional to 682,647.45, 1,023,932.88 and 209,331.51 is: 313,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,647.45 : 1,023,932.88 = 209,331.51 : x
  2. Step 2: Convert to fraction form
    682,647.45/1,023,932.88 = 209,331.51/x
  3. Step 3: Cross multiply
    682,647.45x = 1,023,932.88 × 209,331.51
  4. Step 4: Simplify right side
    682,647.45x = 214,341,415,909.05
  5. Step 5: Solve for x
    x = 214,341,415,909.05/682,647.45
  6. Step 6: Final answer
    x = 313,985.52

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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.