Finding the Fourth Proportional to 1,521,662.68, 2,099,957.79 and 842,599.18
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Solution
The fourth proportional to 1,521,662.68, 2,099,957.79 and 842,599.18 is: 1,162,821.92
Step by Step Solution
- Step 1: Write the proportion equation
1,521,662.68 : 2,099,957.79 = 842,599.18 : x - Step 2: Convert to fraction form
1,521,662.68/2,099,957.79 = 842,599.18/x - Step 3: Cross multiply
1,521,662.68x = 2,099,957.79 × 842,599.18 - Step 4: Simplify right side
1,521,662.68x = 1,769,422,711,888.61 - Step 5: Solve for x
x = 1,769,422,711,888.61/1,521,662.68 - Step 6: Final answer
x = 1,162,821.92
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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.