Home / 682,643.46-1,023,979.95-209,318.34

Finding the Fourth Proportional to 682,643.46, 1,023,979.95 and 209,318.34

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Solution

The fourth proportional to 682,643.46, 1,023,979.95 and 209,318.34 is: 313,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,643.46 : 1,023,979.95 = 209,318.34 : x
  2. Step 2: Convert to fraction form
    682,643.46/1,023,979.95 = 209,318.34/x
  3. Step 3: Cross multiply
    682,643.46x = 1,023,979.95 × 209,318.34
  4. Step 4: Simplify right side
    682,643.46x = 214,337,783,327.28
  5. Step 5: Solve for x
    x = 214,337,783,327.28/682,643.46
  6. Step 6: Final answer
    x = 313,982.04

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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.