Finding the Fourth Proportional to 518,704.12, 715,817.28 and 292,349.62
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Solution
The fourth proportional to 518,704.12, 715,817.28 and 292,349.62 is: 403,445.63
Step by Step Solution
- Step 1: Write the proportion equation
518,704.12 : 715,817.28 = 292,349.62 : x - Step 2: Convert to fraction form
518,704.12/715,817.28 = 292,349.62/x - Step 3: Cross multiply
518,704.12x = 715,817.28 × 292,349.62 - Step 4: Simplify right side
518,704.12x = 209,268,909,797.43 - Step 5: Solve for x
x = 209,268,909,797.43/518,704.12 - Step 6: Final answer
x = 403,445.63
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1.5x scale
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.