Finding the Fourth Proportional to 1,126,605.75, 1,553,861.05 and 816,054.49
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Solution
The fourth proportional to 1,126,605.75, 1,553,861.05 and 816,054.49 is: 1,125,535.96
Step by Step Solution
- Step 1: Write the proportion equation
1,126,605.75 : 1,553,861.05 = 816,054.49 : x - Step 2: Convert to fraction form
1,126,605.75/1,553,861.05 = 816,054.49/x - Step 3: Cross multiply
1,126,605.75x = 1,553,861.05 × 816,054.49 - Step 4: Simplify right side
1,126,605.75x = 1,268,035,286,688.61 - Step 5: Solve for x
x = 1,268,035,286,688.61/1,126,605.75 - Step 6: Final answer
x = 1,125,535.96
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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.