Finding the Fourth Proportional to 406,331.40, 608,936.58 and 306,381.75
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Solution
The fourth proportional to 406,331.40, 608,936.58 and 306,381.75 is: 459,149.98
Step by Step Solution
- Step 1: Write the proportion equation
406,331.40 : 608,936.58 = 306,381.75 : x - Step 2: Convert to fraction form
406,331.40/608,936.58 = 306,381.75/x - Step 3: Cross multiply
406,331.40x = 608,936.58 × 306,381.75 - Step 4: Simplify right side
406,331.40x = 186,567,055,019.42 - Step 5: Solve for x
x = 186,567,055,019.42/406,331.40 - Step 6: Final answer
x = 459,149.98
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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.