Finding the Fourth Proportional to 815,754.30, 1,125,900.99 and 521,214.66
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Solution
The fourth proportional to 815,754.30, 1,125,900.99 and 521,214.66 is: 719,378.50
Step by Step Solution
- Step 1: Write the proportion equation
815,754.30 : 1,125,900.99 = 521,214.66 : x - Step 2: Convert to fraction form
815,754.30/1,125,900.99 = 521,214.66/x - Step 3: Cross multiply
815,754.30x = 1,125,900.99 × 521,214.66 - Step 4: Simplify right side
815,754.30x = 586,836,101,696.51 - Step 5: Solve for x
x = 586,836,101,696.51/815,754.30 - Step 6: Final answer
x = 719,378.50
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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.