Finding the Fourth Proportional to 1,485,641.80, 2,052,108.84 and 1,228,557.18
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Solution
The fourth proportional to 1,485,641.80, 2,052,108.84 and 1,228,557.18 is: 1,696,999.27
Step by Step Solution
- Step 1: Write the proportion equation
1,485,641.80 : 2,052,108.84 = 1,228,557.18 : x - Step 2: Convert to fraction form
1,485,641.80/2,052,108.84 = 1,228,557.18/x - Step 3: Cross multiply
1,485,641.80x = 2,052,108.84 × 1,228,557.18 - Step 4: Simplify right side
1,485,641.80x = 2,521,133,043,380.69 - Step 5: Solve for x
x = 2,521,133,043,380.69/1,485,641.80 - Step 6: Final answer
x = 1,696,999.27
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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.