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Finding the Fourth Proportional to 571,692.98, 788,930.94 and 313,564.64

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Solution

The fourth proportional to 571,692.98, 788,930.94 and 313,564.64 is: 432,716.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,692.98 : 788,930.94 = 313,564.64 : x
  2. Step 2: Convert to fraction form
    571,692.98/788,930.94 = 313,564.64/x
  3. Step 3: Cross multiply
    571,692.98x = 788,930.94 × 313,564.64
  4. Step 4: Simplify right side
    571,692.98x = 247,380,846,185.96
  5. Step 5: Solve for x
    x = 247,380,846,185.96/571,692.98
  6. Step 6: Final answer
    x = 432,716.26

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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.