Finding the Fourth Proportional to 854,053.80, 1,280,644.98 and 285,229.99
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Solution
The fourth proportional to 854,053.80, 1,280,644.98 and 285,229.99 is: 427,699.47
Step by Step Solution
- Step 1: Write the proportion equation
854,053.80 : 1,280,644.98 = 285,229.99 : x - Step 2: Convert to fraction form
854,053.80/1,280,644.98 = 285,229.99/x - Step 3: Cross multiply
854,053.80x = 1,280,644.98 × 285,229.99 - Step 4: Simplify right side
854,053.80x = 365,278,354,838.95 - Step 5: Solve for x
x = 365,278,354,838.95/854,053.80 - Step 6: Final answer
x = 427,699.47
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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.