Finding the Fourth Proportional to 1,642,205.99, 2,266,113.66 and 917,010.43
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Solution
The fourth proportional to 1,642,205.99, 2,266,113.66 and 917,010.43 is: 1,265,401.46
Step by Step Solution
- Step 1: Write the proportion equation
1,642,205.99 : 2,266,113.66 = 917,010.43 : x - Step 2: Convert to fraction form
1,642,205.99/2,266,113.66 = 917,010.43/x - Step 3: Cross multiply
1,642,205.99x = 2,266,113.66 × 917,010.43 - Step 4: Simplify right side
1,642,205.99x = 2,078,049,861,785.47 - Step 5: Solve for x
x = 2,078,049,861,785.47/1,642,205.99 - Step 6: Final answer
x = 1,265,401.46
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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.