Finding the Fourth Proportional to 1,663,974.68, 2,296,238.31 and 938,889.87
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Solution
The fourth proportional to 1,663,974.68, 2,296,238.31 and 938,889.87 is: 1,295,641.65
Step by Step Solution
- Step 1: Write the proportion equation
1,663,974.68 : 2,296,238.31 = 938,889.87 : x - Step 2: Convert to fraction form
1,663,974.68/2,296,238.31 = 938,889.87/x - Step 3: Cross multiply
1,663,974.68x = 2,296,238.31 × 938,889.87 - Step 4: Simplify right side
1,663,974.68x = 2,155,914,888,364.92 - Step 5: Solve for x
x = 2,155,914,888,364.92/1,663,974.68 - Step 6: Final answer
x = 1,295,641.65
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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.