Finding the Fourth Proportional to 1,112,282.86, 1,534,891.30 and 628,819.18
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Solution
The fourth proportional to 1,112,282.86, 1,534,891.30 and 628,819.18 is: 867,737.09
Step by Step Solution
- Step 1: Write the proportion equation
1,112,282.86 : 1,534,891.30 = 628,819.18 : x - Step 2: Convert to fraction form
1,112,282.86/1,534,891.30 = 628,819.18/x - Step 3: Cross multiply
1,112,282.86x = 1,534,891.30 × 628,819.18 - Step 4: Simplify right side
1,112,282.86x = 965,169,088,655.13 - Step 5: Solve for x
x = 965,169,088,655.13/1,112,282.86 - Step 6: Final answer
x = 867,737.09
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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.