Finding the Fourth Proportional to 1,189,419.95, 1,641,415.26 and 645,562.26
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Solution
The fourth proportional to 1,189,419.95, 1,641,415.26 and 645,562.26 is: 890,884.46
Step by Step Solution
- Step 1: Write the proportion equation
1,189,419.95 : 1,641,415.26 = 645,562.26 : x - Step 2: Convert to fraction form
1,189,419.95/1,641,415.26 = 645,562.26/x - Step 3: Cross multiply
1,189,419.95x = 1,641,415.26 × 645,562.26 - Step 4: Simplify right side
1,189,419.95x = 1,059,635,744,844.09 - Step 5: Solve for x
x = 1,059,635,744,844.09/1,189,419.95 - Step 6: Final answer
x = 890,884.46
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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.