Finding the Fourth Proportional to 1,071,815.44, 1,479,050.99 and 636,251.41
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Solution
The fourth proportional to 1,071,815.44, 1,479,050.99 and 636,251.41 is: 877,994.70
Step by Step Solution
- Step 1: Write the proportion equation
1,071,815.44 : 1,479,050.99 = 636,251.41 : x - Step 2: Convert to fraction form
1,071,815.44/1,479,050.99 = 636,251.41/x - Step 3: Cross multiply
1,071,815.44x = 1,479,050.99 × 636,251.41 - Step 4: Simplify right side
1,071,815.44x = 941,048,270,583.23 - Step 5: Solve for x
x = 941,048,270,583.23/1,071,815.44 - Step 6: Final answer
x = 877,994.70
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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.