Finding the Fourth Proportional to 1,515,113.81, 2,090,901.53 and 826,830.09
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Solution
The fourth proportional to 1,515,113.81, 2,090,901.53 and 826,830.09 is: 1,141,049.80
Step by Step Solution
- Step 1: Write the proportion equation
1,515,113.81 : 2,090,901.53 = 826,830.09 : x - Step 2: Convert to fraction form
1,515,113.81/2,090,901.53 = 826,830.09/x - Step 3: Cross multiply
1,515,113.81x = 2,090,901.53 × 826,830.09 - Step 4: Simplify right side
1,515,113.81x = 1,728,820,306,982.64 - Step 5: Solve for x
x = 1,728,820,306,982.64/1,515,113.81 - Step 6: Final answer
x = 1,141,049.80
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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.