Finding the Fourth Proportional to 618,618.36, 853,753.26 and 346,732.44
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Solution
The fourth proportional to 618,618.36, 853,753.26 and 346,732.44 is: 478,524.35
Step by Step Solution
- Step 1: Write the proportion equation
618,618.36 : 853,753.26 = 346,732.44 : x - Step 2: Convert to fraction form
618,618.36/853,753.26 = 346,732.44/x - Step 3: Cross multiply
618,618.36x = 853,753.26 × 346,732.44 - Step 4: Simplify right side
618,618.36x = 296,023,950,997.75 - Step 5: Solve for x
x = 296,023,950,997.75/618,618.36 - Step 6: Final answer
x = 478,524.35
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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.