Finding the Fourth Proportional to 1,218,701.85, 1,681,787.99 and 674,825.96
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Solution
The fourth proportional to 1,218,701.85, 1,681,787.99 and 674,825.96 is: 931,248.43
Step by Step Solution
- Step 1: Write the proportion equation
1,218,701.85 : 1,681,787.99 = 674,825.96 : x - Step 2: Convert to fraction form
1,218,701.85/1,681,787.99 = 674,825.96/x - Step 3: Cross multiply
1,218,701.85x = 1,681,787.99 × 674,825.96 - Step 4: Simplify right side
1,218,701.85x = 1,134,914,183,085.15 - Step 5: Solve for x
x = 1,134,914,183,085.15/1,218,701.85 - Step 6: Final answer
x = 931,248.43
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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.