Finding the Fourth Proportional to 279,590.04, 419,355.84 and 79,897.56
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Solution
The fourth proportional to 279,590.04, 419,355.84 and 79,897.56 is: 119,837.99
Step by Step Solution
- Step 1: Write the proportion equation
279,590.04 : 419,355.84 = 79,897.56 : x - Step 2: Convert to fraction form
279,590.04/419,355.84 = 79,897.56/x - Step 3: Cross multiply
279,590.04x = 419,355.84 × 79,897.56 - Step 4: Simplify right side
279,590.04x = 33,505,508,387.75 - Step 5: Solve for x
x = 33,505,508,387.75/279,590.04 - Step 6: Final answer
x = 119,837.99
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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.