Finding the Fourth Proportional to 1,378,869.49, 1,902,062.95 and 827,442.55
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Solution
The fourth proportional to 1,378,869.49, 1,902,062.95 and 827,442.55 is: 1,141,404.48
Step by Step Solution
- Step 1: Write the proportion equation
1,378,869.49 : 1,902,062.95 = 827,442.55 : x - Step 2: Convert to fraction form
1,378,869.49/1,902,062.95 = 827,442.55/x - Step 3: Cross multiply
1,378,869.49x = 1,902,062.95 × 827,442.55 - Step 4: Simplify right side
1,378,869.49x = 1,573,847,817,608.52 - Step 5: Solve for x
x = 1,573,847,817,608.52/1,378,869.49 - Step 6: Final answer
x = 1,141,404.48
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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.