Finding the Fourth Proportional to 1,961,478.60, 2,936,736.12 and 1,059,689.40
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Solution
The fourth proportional to 1,961,478.60, 2,936,736.12 and 1,059,689.40 is: 1,586,572.57
Step by Step Solution
- Step 1: Write the proportion equation
1,961,478.60 : 2,936,736.12 = 1,059,689.40 : x - Step 2: Convert to fraction form
1,961,478.60/2,936,736.12 = 1,059,689.40/x - Step 3: Cross multiply
1,961,478.60x = 2,936,736.12 × 1,059,689.40 - Step 4: Simplify right side
1,961,478.60x = 3,112,028,136,961.13 - Step 5: Solve for x
x = 3,112,028,136,961.13/1,961,478.60 - Step 6: Final answer
x = 1,586,572.57
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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.