Finding the Fourth Proportional to 1,207,110.69, 1,665,188.15 and 819,946.08
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Solution
The fourth proportional to 1,207,110.69, 1,665,188.15 and 819,946.08 is: 1,131,101.32
Step by Step Solution
- Step 1: Write the proportion equation
1,207,110.69 : 1,665,188.15 = 819,946.08 : x - Step 2: Convert to fraction form
1,207,110.69/1,665,188.15 = 819,946.08/x - Step 3: Cross multiply
1,207,110.69x = 1,665,188.15 × 819,946.08 - Step 4: Simplify right side
1,207,110.69x = 1,365,364,491,955.22 - Step 5: Solve for x
x = 1,365,364,491,955.22/1,207,110.69 - Step 6: Final answer
x = 1,131,101.32
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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.