Finding the Fourth Proportional to 813,161.62, 1,122,187.63 and 450,551.55
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Solution
The fourth proportional to 813,161.62, 1,122,187.63 and 450,551.55 is: 621,774.77
Step by Step Solution
- Step 1: Write the proportion equation
813,161.62 : 1,122,187.63 = 450,551.55 : x - Step 2: Convert to fraction form
813,161.62/1,122,187.63 = 450,551.55/x - Step 3: Cross multiply
813,161.62x = 1,122,187.63 × 450,551.55 - Step 4: Simplify right side
813,161.62x = 505,603,376,087.33 - Step 5: Solve for x
x = 505,603,376,087.33/813,161.62 - Step 6: Final answer
x = 621,774.77
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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.