Finding the Fourth Proportional to 1,784,840.28, 2,678,324.15 and 647,691.20
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Solution
The fourth proportional to 1,784,840.28, 2,678,324.15 and 647,691.20 is: 971,922.81
Step by Step Solution
- Step 1: Write the proportion equation
1,784,840.28 : 2,678,324.15 = 647,691.20 : x - Step 2: Convert to fraction form
1,784,840.28/2,678,324.15 = 647,691.20/x - Step 3: Cross multiply
1,784,840.28x = 2,678,324.15 × 647,691.20 - Step 4: Simplify right side
1,784,840.28x = 1,734,726,977,330.54 - Step 5: Solve for x
x = 1,734,726,977,330.54/1,784,840.28 - Step 6: Final answer
x = 971,922.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.