Finding the Fourth Proportional to 392,336.70, 539,725.68 and 343,719.66
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Solution
The fourth proportional to 392,336.70, 539,725.68 and 343,719.66 is: 472,844.69
Step by Step Solution
- Step 1: Write the proportion equation
392,336.70 : 539,725.68 = 343,719.66 : x - Step 2: Convert to fraction form
392,336.70/539,725.68 = 343,719.66/x - Step 3: Cross multiply
392,336.70x = 539,725.68 × 343,719.66 - Step 4: Simplify right side
392,336.70x = 185,514,327,222.87 - Step 5: Solve for x
x = 185,514,327,222.87/392,336.70 - Step 6: Final answer
x = 472,844.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.