Finding the Fourth Proportional to 1,117,661.20, 1,538,476.68 and 974,170.96
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Solution
The fourth proportional to 1,117,661.20, 1,538,476.68 and 974,170.96 is: 1,340,960.31
Step by Step Solution
- Step 1: Write the proportion equation
1,117,661.20 : 1,538,476.68 = 974,170.96 : x - Step 2: Convert to fraction form
1,117,661.20/1,538,476.68 = 974,170.96/x - Step 3: Cross multiply
1,117,661.20x = 1,538,476.68 × 974,170.96 - Step 4: Simplify right side
1,117,661.20x = 1,498,739,304,293.21 - Step 5: Solve for x
x = 1,498,739,304,293.21/1,117,661.20 - Step 6: Final answer
x = 1,340,960.31
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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.