Finding the Fourth Proportional to 1,186,944.12, 1,637,885.97 and 696,861.99
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Solution
The fourth proportional to 1,186,944.12, 1,637,885.97 and 696,861.99 is: 961,612.65
Step by Step Solution
- Step 1: Write the proportion equation
1,186,944.12 : 1,637,885.97 = 696,861.99 : x - Step 2: Convert to fraction form
1,186,944.12/1,637,885.97 = 696,861.99/x - Step 3: Cross multiply
1,186,944.12x = 1,637,885.97 × 696,861.99 - Step 4: Simplify right side
1,186,944.12x = 1,141,380,476,447.28 - Step 5: Solve for x
x = 1,141,380,476,447.28/1,186,944.12 - Step 6: Final answer
x = 961,612.65
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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.