Finding the Fourth Proportional to 1,129,539.24, 1,558,757.13 and 646,112.46
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Solution
The fourth proportional to 1,129,539.24, 1,558,757.13 and 646,112.46 is: 891,631.18
Step by Step Solution
- Step 1: Write the proportion equation
1,129,539.24 : 1,558,757.13 = 646,112.46 : x - Step 2: Convert to fraction form
1,129,539.24/1,558,757.13 = 646,112.46/x - Step 3: Cross multiply
1,129,539.24x = 1,558,757.13 × 646,112.46 - Step 4: Simplify right side
1,129,539.24x = 1,007,132,403,806.84 - Step 5: Solve for x
x = 1,007,132,403,806.84/1,129,539.24 - Step 6: Final answer
x = 891,631.18
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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.