Finding the Fourth Proportional to 821,318.14, 1,133,406.97 and 458,747.29
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Solution
The fourth proportional to 821,318.14, 1,133,406.97 and 458,747.29 is: 633,064.52
Step by Step Solution
- Step 1: Write the proportion equation
821,318.14 : 1,133,406.97 = 458,747.29 : x - Step 2: Convert to fraction form
821,318.14/1,133,406.97 = 458,747.29/x - Step 3: Cross multiply
821,318.14x = 1,133,406.97 × 458,747.29 - Step 4: Simplify right side
821,318.14x = 519,947,371,974.23 - Step 5: Solve for x
x = 519,947,371,974.23/821,318.14 - Step 6: Final answer
x = 633,064.52
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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.