Finding the Fourth Proportional to 1,902,857.37, 2,623,402.85 and 1,511,688.23
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Solution
The fourth proportional to 1,902,857.37, 2,623,402.85 and 1,511,688.23 is: 2,084,111.65
Step by Step Solution
- Step 1: Write the proportion equation
1,902,857.37 : 2,623,402.85 = 1,511,688.23 : x - Step 2: Convert to fraction form
1,902,857.37/2,623,402.85 = 1,511,688.23/x - Step 3: Cross multiply
1,902,857.37x = 2,623,402.85 × 1,511,688.23 - Step 4: Simplify right side
1,902,857.37x = 3,965,767,214,374.19 - Step 5: Solve for x
x = 3,965,767,214,374.19/1,902,857.37 - Step 6: Final answer
x = 2,084,111.65
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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.