Home / 572,018.39-789,383.21-313,899.68

Finding the Fourth Proportional to 572,018.39, 789,383.21 and 313,899.68

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Solution

The fourth proportional to 572,018.39, 789,383.21 and 313,899.68 is: 433,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,018.39 : 789,383.21 = 313,899.68 : x
  2. Step 2: Convert to fraction form
    572,018.39/789,383.21 = 313,899.68/x
  3. Step 3: Cross multiply
    572,018.39x = 789,383.21 × 313,899.68
  4. Step 4: Simplify right side
    572,018.39x = 247,787,140,015.33
  5. Step 5: Solve for x
    x = 247,787,140,015.33/572,018.39
  6. Step 6: Final answer
    x = 433,180.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.