Finding the Fourth Proportional to 298,979.78, 414,373.10 and 293,381.06
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Solution
The fourth proportional to 298,979.78, 414,373.10 and 293,381.06 is: 406,613.52
Step by Step Solution
- Step 1: Write the proportion equation
298,979.78 : 414,373.10 = 293,381.06 : x - Step 2: Convert to fraction form
298,979.78/414,373.10 = 293,381.06/x - Step 3: Cross multiply
298,979.78x = 414,373.10 × 293,381.06 - Step 4: Simplify right side
298,979.78x = 121,569,219,313.49 - Step 5: Solve for x
x = 121,569,219,313.49/298,979.78 - Step 6: Final answer
x = 406,613.52
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.