Finding the Fourth Proportional to 753,133.90, 1,128,716.70 and 303,486.70
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Solution
The fourth proportional to 753,133.90, 1,128,716.70 and 303,486.70 is: 454,833.47
Step by Step Solution
- Step 1: Write the proportion equation
753,133.90 : 1,128,716.70 = 303,486.70 : x - Step 2: Convert to fraction form
753,133.90/1,128,716.70 = 303,486.70/x - Step 3: Cross multiply
753,133.90x = 1,128,716.70 × 303,486.70 - Step 4: Simplify right side
753,133.90x = 342,550,506,517.89 - Step 5: Solve for x
x = 342,550,506,517.89/753,133.90 - Step 6: Final answer
x = 454,833.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.