Finding the Fourth Proportional to 1,284,284.40, 1,772,214.84 and 711,312.24
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Solution
The fourth proportional to 1,284,284.40, 1,772,214.84 and 711,312.24 is: 981,556.82
Step by Step Solution
- Step 1: Write the proportion equation
1,284,284.40 : 1,772,214.84 = 711,312.24 : x - Step 2: Convert to fraction form
1,284,284.40/1,772,214.84 = 711,312.24/x - Step 3: Cross multiply
1,284,284.40x = 1,772,214.84 × 711,312.24 - Step 4: Simplify right side
1,284,284.40x = 1,260,598,107,601.64 - Step 5: Solve for x
x = 1,260,598,107,601.64/1,284,284.40 - Step 6: Final answer
x = 981,556.82
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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.