Finding the Fourth Proportional to 1,296,059.10, 1,940,686.65 and 914,921.70
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Solution
The fourth proportional to 1,296,059.10, 1,940,686.65 and 914,921.70 is: 1,369,980.99
Step by Step Solution
- Step 1: Write the proportion equation
1,296,059.10 : 1,940,686.65 = 914,921.70 : x - Step 2: Convert to fraction form
1,296,059.10/1,940,686.65 = 914,921.70/x - Step 3: Cross multiply
1,296,059.10x = 1,940,686.65 × 914,921.70 - Step 4: Simplify right side
1,296,059.10x = 1,775,576,328,985.31 - Step 5: Solve for x
x = 1,775,576,328,985.31/1,296,059.10 - Step 6: Final answer
x = 1,369,980.99
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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.