Finding the Fourth Proportional to 1,663,990.11, 2,296,108.83 and 938,795.49
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Solution
The fourth proportional to 1,663,990.11, 2,296,108.83 and 938,795.49 is: 1,295,426.34
Step by Step Solution
- Step 1: Write the proportion equation
1,663,990.11 : 2,296,108.83 = 938,795.49 : x - Step 2: Convert to fraction form
1,663,990.11/2,296,108.83 = 938,795.49/x - Step 3: Cross multiply
1,663,990.11x = 2,296,108.83 × 938,795.49 - Step 4: Simplify right side
1,663,990.11x = 2,155,576,614,153.18 - Step 5: Solve for x
x = 2,155,576,614,153.18/1,663,990.11 - Step 6: Final answer
x = 1,295,426.34
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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.