Finding the Fourth Proportional to 813,166.12, 1,122,193.84 and 450,556.08
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Solution
The fourth proportional to 813,166.12, 1,122,193.84 and 450,556.08 is: 621,781.02
Step by Step Solution
- Step 1: Write the proportion equation
813,166.12 : 1,122,193.84 = 450,556.08 : x - Step 2: Convert to fraction form
813,166.12/1,122,193.84 = 450,556.08/x - Step 3: Cross multiply
813,166.12x = 1,122,193.84 × 450,556.08 - Step 4: Simplify right side
813,166.12x = 505,611,257,550.55 - Step 5: Solve for x
x = 505,611,257,550.55/813,166.12 - Step 6: Final answer
x = 621,781.02
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1.5x scale
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.