Finding the Fourth Proportional to 1,284,392.25, 1,772,461.44 and 711,469.53
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Solution
The fourth proportional to 1,284,392.25, 1,772,461.44 and 711,469.53 is: 981,828.03
Step by Step Solution
- Step 1: Write the proportion equation
1,284,392.25 : 1,772,461.44 = 711,469.53 : x - Step 2: Convert to fraction form
1,284,392.25/1,772,461.44 = 711,469.53/x - Step 3: Cross multiply
1,284,392.25x = 1,772,461.44 × 711,469.53 - Step 4: Simplify right side
1,284,392.25x = 1,261,052,307,659.92 - Step 5: Solve for x
x = 1,261,052,307,659.92/1,284,392.25 - Step 6: Final answer
x = 981,828.03
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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.