Finding the Fourth Proportional to 696,859.92, 962,078.93 and 438,957.95
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Solution
The fourth proportional to 696,859.92, 962,078.93 and 438,957.95 is: 606,021.63
Step by Step Solution
- Step 1: Write the proportion equation
696,859.92 : 962,078.93 = 438,957.95 : x - Step 2: Convert to fraction form
696,859.92/962,078.93 = 438,957.95/x - Step 3: Cross multiply
696,859.92x = 962,078.93 × 438,957.95 - Step 4: Simplify right side
696,859.92x = 422,312,187,845.81 - Step 5: Solve for x
x = 422,312,187,845.81/696,859.92 - Step 6: Final answer
x = 606,021.63
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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.