Finding the Fourth Proportional to 1,647,032.40, 2,272,799.16 and 921,757.68
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Solution
The fourth proportional to 1,647,032.40, 2,272,799.16 and 921,757.68 is: 1,271,966.53
Step by Step Solution
- Step 1: Write the proportion equation
1,647,032.40 : 2,272,799.16 = 921,757.68 : x - Step 2: Convert to fraction form
1,647,032.40/2,272,799.16 = 921,757.68/x - Step 3: Cross multiply
1,647,032.40x = 2,272,799.16 × 921,757.68 - Step 4: Simplify right side
1,647,032.40x = 2,094,970,080,827.55 - Step 5: Solve for x
x = 2,094,970,080,827.55/1,647,032.40 - Step 6: Final answer
x = 1,271,966.53
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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.