Home / 845,072.45-1,267,654.83-213,991.73

Finding the Fourth Proportional to 845,072.45, 1,267,654.83 and 213,991.73

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Solution

The fourth proportional to 845,072.45, 1,267,654.83 and 213,991.73 is: 320,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,072.45 : 1,267,654.83 = 213,991.73 : x
  2. Step 2: Convert to fraction form
    845,072.45/1,267,654.83 = 213,991.73/x
  3. Step 3: Cross multiply
    845,072.45x = 1,267,654.83 × 213,991.73
  4. Step 4: Simplify right side
    845,072.45x = 271,267,643,776.28
  5. Step 5: Solve for x
    x = 271,267,643,776.28/845,072.45
  6. Step 6: Final answer
    x = 320,999.28

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Double scale
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Similar ratio
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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.