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Finding the Fourth Proportional to 571,961.64, 789,243.78 and 317,249.32

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Solution

The fourth proportional to 571,961.64, 789,243.78 and 317,249.32 is: 437,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,961.64 : 789,243.78 = 317,249.32 : x
  2. Step 2: Convert to fraction form
    571,961.64/789,243.78 = 317,249.32/x
  3. Step 3: Cross multiply
    571,961.64x = 789,243.78 × 317,249.32
  4. Step 4: Simplify right side
    571,961.64x = 250,387,052,519.23
  5. Step 5: Solve for x
    x = 250,387,052,519.23/571,961.64
  6. Step 6: Final answer
    x = 437,768.96

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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.