Finding the Fourth Proportional to 1,268,899.82, 1,750,920.15 and 725,070.62
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Solution
The fourth proportional to 1,268,899.82, 1,750,920.15 and 725,070.62 is: 1,000,505.11
Step by Step Solution
- Step 1: Write the proportion equation
1,268,899.82 : 1,750,920.15 = 725,070.62 : x - Step 2: Convert to fraction form
1,268,899.82/1,750,920.15 = 725,070.62/x - Step 3: Cross multiply
1,268,899.82x = 1,750,920.15 × 725,070.62 - Step 4: Simplify right side
1,268,899.82x = 1,269,540,758,730.99 - Step 5: Solve for x
x = 1,269,540,758,730.99/1,268,899.82 - Step 6: Final answer
x = 1,000,505.11
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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.