Finding the Fourth Proportional to 1,309,421.34, 1,964,611.80 and 551,453.62
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Solution
The fourth proportional to 1,309,421.34, 1,964,611.80 and 551,453.62 is: 827,382.49
Step by Step Solution
- Step 1: Write the proportion equation
1,309,421.34 : 1,964,611.80 = 551,453.62 : x - Step 2: Convert to fraction form
1,309,421.34/1,964,611.80 = 551,453.62/x - Step 3: Cross multiply
1,309,421.34x = 1,964,611.80 × 551,453.62 - Step 4: Simplify right side
1,309,421.34x = 1,083,392,289,004.72 - Step 5: Solve for x
x = 1,083,392,289,004.72/1,309,421.34 - Step 6: Final answer
x = 827,382.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.