Finding the Fourth Proportional to 519,186.14, 778,775.70 and 279,412.88
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Solution
The fourth proportional to 519,186.14, 778,775.70 and 279,412.88 is: 419,117.43
Step by Step Solution
- Step 1: Write the proportion equation
519,186.14 : 778,775.70 = 279,412.88 : x - Step 2: Convert to fraction form
519,186.14/778,775.70 = 279,412.88/x - Step 3: Cross multiply
519,186.14x = 778,775.70 × 279,412.88 - Step 4: Simplify right side
519,186.14x = 217,599,961,211.02 - Step 5: Solve for x
x = 217,599,961,211.02/519,186.14 - Step 6: Final answer
x = 419,117.43
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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.