Finding the Fourth Proportional to 1,108,009.67, 1,529,174.84 and 642,965.99
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Solution
The fourth proportional to 1,108,009.67, 1,529,174.84 and 642,965.99 is: 887,363.56
Step by Step Solution
- Step 1: Write the proportion equation
1,108,009.67 : 1,529,174.84 = 642,965.99 : x - Step 2: Convert to fraction form
1,108,009.67/1,529,174.84 = 642,965.99/x - Step 3: Cross multiply
1,108,009.67x = 1,529,174.84 × 642,965.99 - Step 4: Simplify right side
1,108,009.67x = 983,207,404,022.99 - Step 5: Solve for x
x = 983,207,404,022.99/1,108,009.67 - Step 6: Final answer
x = 887,363.56
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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.