Finding the Fourth Proportional to 1,916,277.40, 2,874,416.10 and 1,281,755.80
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Solution
The fourth proportional to 1,916,277.40, 2,874,416.10 and 1,281,755.80 is: 1,922,633.70
Step by Step Solution
- Step 1: Write the proportion equation
1,916,277.40 : 2,874,416.10 = 1,281,755.80 : x - Step 2: Convert to fraction form
1,916,277.40/2,874,416.10 = 1,281,755.80/x - Step 3: Cross multiply
1,916,277.40x = 2,874,416.10 × 1,281,755.80 - Step 4: Simplify right side
1,916,277.40x = 3,684,299,507,788.38 - Step 5: Solve for x
x = 3,684,299,507,788.38/1,916,277.40 - Step 6: Final answer
x = 1,922,633.70
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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.