Finding the Fourth Proportional to 929,734.82, 1,283,043.57 and 521,828.49
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Solution
The fourth proportional to 929,734.82, 1,283,043.57 and 521,828.49 is: 720,128.66
Step by Step Solution
- Step 1: Write the proportion equation
929,734.82 : 1,283,043.57 = 521,828.49 : x - Step 2: Convert to fraction form
929,734.82/1,283,043.57 = 521,828.49/x - Step 3: Cross multiply
929,734.82x = 1,283,043.57 × 521,828.49 - Step 4: Simplify right side
929,734.82x = 669,528,688,737.31 - Step 5: Solve for x
x = 669,528,688,737.31/929,734.82 - Step 6: Final answer
x = 720,128.66
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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.