Finding the Fourth Proportional to 1,163,486.96, 1,604,288.20 and 819,212.84
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Solution
The fourth proportional to 1,163,486.96, 1,604,288.20 and 819,212.84 is: 1,129,581.62
Step by Step Solution
- Step 1: Write the proportion equation
1,163,486.96 : 1,604,288.20 = 819,212.84 : x - Step 2: Convert to fraction form
1,163,486.96/1,604,288.20 = 819,212.84/x - Step 3: Cross multiply
1,163,486.96x = 1,604,288.20 × 819,212.84 - Step 4: Simplify right side
1,163,486.96x = 1,314,253,492,287.16 - Step 5: Solve for x
x = 1,314,253,492,287.16/1,163,486.96 - Step 6: Final answer
x = 1,129,581.62
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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.