Finding the Fourth Proportional to 572,657.70, 790,304.19 and 318,008.88
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Solution
The fourth proportional to 572,657.70, 790,304.19 and 318,008.88 is: 438,872.56
Step by Step Solution
- Step 1: Write the proportion equation
572,657.70 : 790,304.19 = 318,008.88 : x - Step 2: Convert to fraction form
572,657.70/790,304.19 = 318,008.88/x - Step 3: Cross multiply
572,657.70x = 790,304.19 × 318,008.88 - Step 4: Simplify right side
572,657.70x = 251,323,750,321.21 - Step 5: Solve for x
x = 251,323,750,321.21/572,657.70 - Step 6: Final answer
x = 438,872.56
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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.