Finding the Fourth Proportional to 1,294,818.16, 1,786,851.48 and 721,846.84
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Solution
The fourth proportional to 1,294,818.16, 1,786,851.48 and 721,846.84 is: 996,149.99
Step by Step Solution
- Step 1: Write the proportion equation
1,294,818.16 : 1,786,851.48 = 721,846.84 : x - Step 2: Convert to fraction form
1,294,818.16/1,786,851.48 = 721,846.84/x - Step 3: Cross multiply
1,294,818.16x = 1,786,851.48 × 721,846.84 - Step 4: Simplify right side
1,294,818.16x = 1,289,833,094,387.32 - Step 5: Solve for x
x = 1,289,833,094,387.32/1,294,818.16 - Step 6: Final answer
x = 996,149.99
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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.