Finding the Fourth Proportional to 472,612.38, 651,979.98 and 319,704.09
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Solution
The fourth proportional to 472,612.38, 651,979.98 and 319,704.09 is: 441,039.37
Step by Step Solution
- Step 1: Write the proportion equation
472,612.38 : 651,979.98 = 319,704.09 : x - Step 2: Convert to fraction form
472,612.38/651,979.98 = 319,704.09/x - Step 3: Cross multiply
472,612.38x = 651,979.98 × 319,704.09 - Step 4: Simplify right side
472,612.38x = 208,440,666,204.12 - Step 5: Solve for x
x = 208,440,666,204.12/472,612.38 - Step 6: Final answer
x = 441,039.37
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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.