Finding the Fourth Proportional to 1,976,729.49, 2,961,705.99 and 1,327,088.97
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Solution
The fourth proportional to 1,976,729.49, 2,961,705.99 and 1,327,088.97 is: 1,988,358.74
Step by Step Solution
- Step 1: Write the proportion equation
1,976,729.49 : 2,961,705.99 = 1,327,088.97 : x - Step 2: Convert to fraction form
1,976,729.49/2,961,705.99 = 1,327,088.97/x - Step 3: Cross multiply
1,976,729.49x = 2,961,705.99 × 1,327,088.97 - Step 4: Simplify right side
1,976,729.49x = 3,930,447,351,711.93 - Step 5: Solve for x
x = 3,930,447,351,711.93/1,976,729.49 - Step 6: Final answer
x = 1,988,358.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.