Finding the Fourth Proportional to 1,252,776.72, 1,728,836.60 and 679,816.95
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Solution
The fourth proportional to 1,252,776.72, 1,728,836.60 and 679,816.95 is: 938,149.95
Step by Step Solution
- Step 1: Write the proportion equation
1,252,776.72 : 1,728,836.60 = 679,816.95 : x - Step 2: Convert to fraction form
1,252,776.72/1,728,836.60 = 679,816.95/x - Step 3: Cross multiply
1,252,776.72x = 1,728,836.60 × 679,816.95 - Step 4: Simplify right side
1,252,776.72x = 1,175,292,414,578.15 - Step 5: Solve for x
x = 1,175,292,414,578.15/1,252,776.72 - Step 6: Final answer
x = 938,149.95
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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.