Finding the Fourth Proportional to 1,151,997.14, 1,589,757.05 and 642,699.62
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Solution
The fourth proportional to 1,151,997.14, 1,589,757.05 and 642,699.62 is: 886,926.03
Step by Step Solution
- Step 1: Write the proportion equation
1,151,997.14 : 1,589,757.05 = 642,699.62 : x - Step 2: Convert to fraction form
1,151,997.14/1,589,757.05 = 642,699.62/x - Step 3: Cross multiply
1,151,997.14x = 1,589,757.05 × 642,699.62 - Step 4: Simplify right side
1,151,997.14x = 1,021,736,251,927.32 - Step 5: Solve for x
x = 1,021,736,251,927.32/1,151,997.14 - Step 6: Final answer
x = 886,926.03
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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.