Finding the Fourth Proportional to 531,063.18, 732,532.41 and 316,042.74
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Solution
The fourth proportional to 531,063.18, 732,532.41 and 316,042.74 is: 435,939.75
Step by Step Solution
- Step 1: Write the proportion equation
531,063.18 : 732,532.41 = 316,042.74 : x - Step 2: Convert to fraction form
531,063.18/732,532.41 = 316,042.74/x - Step 3: Cross multiply
531,063.18x = 732,532.41 × 316,042.74 - Step 4: Simplify right side
531,063.18x = 231,511,549,995.20 - Step 5: Solve for x
x = 231,511,549,995.20/531,063.18 - Step 6: Final answer
x = 435,939.75
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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.