Finding the Fourth Proportional to 1,378,229.64, 1,902,063.12 and 826,965.96
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Solution
The fourth proportional to 1,378,229.64, 1,902,063.12 and 826,965.96 is: 1,141,276.76
Step by Step Solution
- Step 1: Write the proportion equation
1,378,229.64 : 1,902,063.12 = 826,965.96 : x - Step 2: Convert to fraction form
1,378,229.64/1,902,063.12 = 826,965.96/x - Step 3: Cross multiply
1,378,229.64x = 1,902,063.12 × 826,965.96 - Step 4: Simplify right side
1,378,229.64x = 1,572,941,454,011.40 - Step 5: Solve for x
x = 1,572,941,454,011.40/1,378,229.64 - Step 6: Final answer
x = 1,141,276.76
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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.