Finding the Fourth Proportional to 821,652.16, 1,133,938.66 and 454,121.39
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Solution
The fourth proportional to 821,652.16, 1,133,938.66 and 454,121.39 is: 626,719.95
Step by Step Solution
- Step 1: Write the proportion equation
821,652.16 : 1,133,938.66 = 454,121.39 : x - Step 2: Convert to fraction form
821,652.16/1,133,938.66 = 454,121.39/x - Step 3: Cross multiply
821,652.16x = 1,133,938.66 × 454,121.39 - Step 4: Simplify right side
821,652.16x = 514,945,799,318.63 - Step 5: Solve for x
x = 514,945,799,318.63/821,652.16 - Step 6: Final answer
x = 626,719.95
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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.