Finding the Fourth Proportional to 1,430,816.15, 1,972,553.28 and 1,141,409.98
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Solution
The fourth proportional to 1,430,816.15, 1,972,553.28 and 1,141,409.98 is: 1,573,571.84
Step by Step Solution
- Step 1: Write the proportion equation
1,430,816.15 : 1,972,553.28 = 1,141,409.98 : x - Step 2: Convert to fraction form
1,430,816.15/1,972,553.28 = 1,141,409.98/x - Step 3: Cross multiply
1,430,816.15x = 1,972,553.28 × 1,141,409.98 - Step 4: Simplify right side
1,430,816.15x = 2,251,491,999,873.73 - Step 5: Solve for x
x = 2,251,491,999,873.73/1,430,816.15 - Step 6: Final answer
x = 1,573,571.84
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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.