Finding the Fourth Proportional to 1,166,487.75, 1,609,753.10 and 629,943.75
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Solution
The fourth proportional to 1,166,487.75, 1,609,753.10 and 629,943.75 is: 869,322.38
Step by Step Solution
- Step 1: Write the proportion equation
1,166,487.75 : 1,609,753.10 = 629,943.75 : x - Step 2: Convert to fraction form
1,166,487.75/1,609,753.10 = 629,943.75/x - Step 3: Cross multiply
1,166,487.75x = 1,609,753.10 × 629,943.75 - Step 4: Simplify right side
1,166,487.75x = 1,014,053,901,238.41 - Step 5: Solve for x
x = 1,014,053,901,238.41/1,166,487.75 - Step 6: Final answer
x = 869,322.38
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1.5x scale
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.