Finding the Fourth Proportional to 1,284,479.63, 1,772,581.88 and 711,556.91
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Solution
The fourth proportional to 1,284,479.63, 1,772,581.88 and 711,556.91 is: 981,948.53
Step by Step Solution
- Step 1: Write the proportion equation
1,284,479.63 : 1,772,581.88 = 711,556.91 : x - Step 2: Convert to fraction form
1,284,479.63/1,772,581.88 = 711,556.91/x - Step 3: Cross multiply
1,284,479.63x = 1,772,581.88 × 711,556.91 - Step 4: Simplify right side
1,284,479.63x = 1,261,292,878,170.77 - Step 5: Solve for x
x = 1,261,292,878,170.77/1,284,479.63 - Step 6: Final answer
x = 981,948.53
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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.