Finding the Fourth Proportional to 1,293,625.12, 1,785,124.92 and 720,563.08
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Solution
The fourth proportional to 1,293,625.12, 1,785,124.92 and 720,563.08 is: 994,333.75
Step by Step Solution
- Step 1: Write the proportion equation
1,293,625.12 : 1,785,124.92 = 720,563.08 : x - Step 2: Convert to fraction form
1,293,625.12/1,785,124.92 = 720,563.08/x - Step 3: Cross multiply
1,293,625.12x = 1,785,124.92 × 720,563.08 - Step 4: Simplify right side
1,293,625.12x = 1,286,295,110,539.95 - Step 5: Solve for x
x = 1,286,295,110,539.95/1,293,625.12 - Step 6: Final answer
x = 994,333.75
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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.