Finding the Fourth Proportional to 1,212,158, 1,818,246.11 and 538,058.09
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Solution
The fourth proportional to 1,212,158, 1,818,246.11 and 538,058.09 is: 807,091.18
Step by Step Solution
- Step 1: Write the proportion equation
1,212,158 : 1,818,246.11 = 538,058.09 : x - Step 2: Convert to fraction form
1,212,158/1,818,246.11 = 538,058.09/x - Step 3: Cross multiply
1,212,158x = 1,818,246.11 × 538,058.09 - Step 4: Simplify right side
1,212,158x = 978,322,029,096.53 - Step 5: Solve for x
x = 978,322,029,096.53/1,212,158 - Step 6: Final answer
x = 807,091.18
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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.