Finding the Fourth Proportional to 989,816.75, 1,365,950.76 and 537,107.75
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Solution
The fourth proportional to 989,816.75, 1,365,950.76 and 537,107.75 is: 741,210.67
Step by Step Solution
- Step 1: Write the proportion equation
989,816.75 : 1,365,950.76 = 537,107.75 : x - Step 2: Convert to fraction form
989,816.75/1,365,950.76 = 537,107.75/x - Step 3: Cross multiply
989,816.75x = 1,365,950.76 × 537,107.75 - Step 4: Simplify right side
989,816.75x = 733,662,739,314.39 - Step 5: Solve for x
x = 733,662,739,314.39/989,816.75 - Step 6: Final answer
x = 741,210.67
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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.