Finding the Fourth Proportional to 1,478,067.12, 2,217,102.57 and 356,136.12
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Solution
The fourth proportional to 1,478,067.12, 2,217,102.57 and 356,136.12 is: 534,204.64
Step by Step Solution
- Step 1: Write the proportion equation
1,478,067.12 : 2,217,102.57 = 356,136.12 : x - Step 2: Convert to fraction form
1,478,067.12/2,217,102.57 = 356,136.12/x - Step 3: Cross multiply
1,478,067.12x = 2,217,102.57 × 356,136.12 - Step 4: Simplify right side
1,478,067.12x = 789,590,306,921.83 - Step 5: Solve for x
x = 789,590,306,921.83/1,478,067.12 - Step 6: Final answer
x = 534,204.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.