Finding the Fourth Proportional to 813,381.49, 1,122,466.57 and 450,828.73
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Solution
The fourth proportional to 813,381.49, 1,122,466.57 and 450,828.73 is: 622,143.71
Step by Step Solution
- Step 1: Write the proportion equation
813,381.49 : 1,122,466.57 = 450,828.73 : x - Step 2: Convert to fraction form
813,381.49/1,122,466.57 = 450,828.73/x - Step 3: Cross multiply
813,381.49x = 1,122,466.57 × 450,828.73 - Step 4: Simplify right side
813,381.49x = 506,040,174,287.32 - Step 5: Solve for x
x = 506,040,174,287.32/813,381.49 - Step 6: Final answer
x = 622,143.71
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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.