Home / 682,400.40-1,023,563.69-209,087.12

Finding the Fourth Proportional to 682,400.40, 1,023,563.69 and 209,087.12

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Solution

The fourth proportional to 682,400.40, 1,023,563.69 and 209,087.12 is: 313,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,400.40 : 1,023,563.69 = 209,087.12 : x
  2. Step 2: Convert to fraction form
    682,400.40/1,023,563.69 = 209,087.12/x
  3. Step 3: Cross multiply
    682,400.40x = 1,023,563.69 × 209,087.12
  4. Step 4: Simplify right side
    682,400.40x = 214,013,986,376.22
  5. Step 5: Solve for x
    x = 214,013,986,376.22/682,400.40
  6. Step 6: Final answer
    x = 313,619.38

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Double scale
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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.