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Finding the Fourth Proportional to 571,768.00, 789,027.78 and 353,918.80

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Solution

The fourth proportional to 571,768.00, 789,027.78 and 353,918.80 is: 488,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,768.00 : 789,027.78 = 353,918.80 : x
  2. Step 2: Convert to fraction form
    571,768.00/789,027.78 = 353,918.80/x
  3. Step 3: Cross multiply
    571,768.00x = 789,027.78 × 353,918.80
  4. Step 4: Simplify right side
    571,768.00x = 279,251,767,377.74
  5. Step 5: Solve for x
    x = 279,251,767,377.74/571,768.00
  6. Step 6: Final answer
    x = 488,400.49

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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.