Finding the Fourth Proportional to 2,486,083.76, 3,430,761.12 and 1,398,356.07
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Solution
The fourth proportional to 2,486,083.76, 3,430,761.12 and 1,398,356.07 is: 1,929,711.99
Step by Step Solution
- Step 1: Write the proportion equation
2,486,083.76 : 3,430,761.12 = 1,398,356.07 : x - Step 2: Convert to fraction form
2,486,083.76/3,430,761.12 = 1,398,356.07/x - Step 3: Cross multiply
2,486,083.76x = 3,430,761.12 × 1,398,356.07 - Step 4: Simplify right side
2,486,083.76x = 4,797,425,636,872.00 - Step 5: Solve for x
x = 4,797,425,636,872.00/2,486,083.76 - Step 6: Final answer
x = 1,929,711.99
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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.