Finding the Fourth Proportional to 493,742.88, 681,351.21 and 292,538.88
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Solution
The fourth proportional to 493,742.88, 681,351.21 and 292,538.88 is: 403,695.38
Step by Step Solution
- Step 1: Write the proportion equation
493,742.88 : 681,351.21 = 292,538.88 : x - Step 2: Convert to fraction form
493,742.88/681,351.21 = 292,538.88/x - Step 3: Cross multiply
493,742.88x = 681,351.21 × 292,538.88 - Step 4: Simplify right side
493,742.88x = 199,321,719,860.05 - Step 5: Solve for x
x = 199,321,719,860.05/493,742.88 - Step 6: Final answer
x = 403,695.38
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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.