Finding the Fourth Proportional to 1,509,864.36, 2,083,550.34 and 821,539.05
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Solution
The fourth proportional to 1,509,864.36, 2,083,550.34 and 821,539.05 is: 1,133,689.89
Step by Step Solution
- Step 1: Write the proportion equation
1,509,864.36 : 2,083,550.34 = 821,539.05 : x - Step 2: Convert to fraction form
1,509,864.36/2,083,550.34 = 821,539.05/x - Step 3: Cross multiply
1,509,864.36x = 2,083,550.34 × 821,539.05 - Step 4: Simplify right side
1,509,864.36x = 1,711,717,966,950.78 - Step 5: Solve for x
x = 1,711,717,966,950.78/1,509,864.36 - Step 6: Final answer
x = 1,133,689.89
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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.