Finding the Fourth Proportional to 1,281,910.30, 1,769,272.86 and 823,597.79
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Solution
The fourth proportional to 1,281,910.30, 1,769,272.86 and 823,597.79 is: 1,136,716.99
Step by Step Solution
- Step 1: Write the proportion equation
1,281,910.30 : 1,769,272.86 = 823,597.79 : x - Step 2: Convert to fraction form
1,281,910.30/1,769,272.86 = 823,597.79/x - Step 3: Cross multiply
1,281,910.30x = 1,769,272.86 × 823,597.79 - Step 4: Simplify right side
1,281,910.30x = 1,457,169,217,402.98 - Step 5: Solve for x
x = 1,457,169,217,402.98/1,281,910.30 - Step 6: Final answer
x = 1,136,716.99
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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.