Finding the Fourth Proportional to 1,284,707.12, 1,772,825.96 and 711,713.12
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Solution
The fourth proportional to 1,284,707.12, 1,772,825.96 and 711,713.12 is: 982,125.40
Step by Step Solution
- Step 1: Write the proportion equation
1,284,707.12 : 1,772,825.96 = 711,713.12 : x - Step 2: Convert to fraction form
1,284,707.12/1,772,825.96 = 711,713.12/x - Step 3: Cross multiply
1,284,707.12x = 1,772,825.96 × 711,713.12 - Step 4: Simplify right side
1,284,707.12x = 1,261,743,495,208.60 - Step 5: Solve for x
x = 1,261,743,495,208.60/1,284,707.12 - Step 6: Final answer
x = 982,125.40
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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.