Finding the Fourth Proportional to 391,795.74, 588,382.71 and 386,186.08
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Solution
The fourth proportional to 391,795.74, 588,382.71 and 386,186.08 is: 579,958.36
Step by Step Solution
- Step 1: Write the proportion equation
391,795.74 : 588,382.71 = 386,186.08 : x - Step 2: Convert to fraction form
391,795.74/588,382.71 = 386,186.08/x - Step 3: Cross multiply
391,795.74x = 588,382.71 × 386,186.08 - Step 4: Simplify right side
391,795.74x = 227,225,212,314.68 - Step 5: Solve for x
x = 227,225,212,314.68/391,795.74 - Step 6: Final answer
x = 579,958.36
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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.