Finding the Fourth Proportional to 1,432,236.48, 1,976,446.86 and 787,656.66
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Solution
The fourth proportional to 1,432,236.48, 1,976,446.86 and 787,656.66 is: 1,086,944.48
Step by Step Solution
- Step 1: Write the proportion equation
1,432,236.48 : 1,976,446.86 = 787,656.66 : x - Step 2: Convert to fraction form
1,432,236.48/1,976,446.86 = 787,656.66/x - Step 3: Cross multiply
1,432,236.48x = 1,976,446.86 × 787,656.66 - Step 4: Simplify right side
1,432,236.48x = 1,556,761,532,415.09 - Step 5: Solve for x
x = 1,556,761,532,415.09/1,432,236.48 - Step 6: Final answer
x = 1,086,944.48
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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.