Finding the Fourth Proportional to 479,538.18, 661,726.80 and 275,589.63
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Solution
The fourth proportional to 479,538.18, 661,726.80 and 275,589.63 is: 380,293.06
Step by Step Solution
- Step 1: Write the proportion equation
479,538.18 : 661,726.80 = 275,589.63 : x - Step 2: Convert to fraction form
479,538.18/661,726.80 = 275,589.63/x - Step 3: Cross multiply
479,538.18x = 661,726.80 × 275,589.63 - Step 4: Simplify right side
479,538.18x = 182,365,043,973.08 - Step 5: Solve for x
x = 182,365,043,973.08/479,538.18 - Step 6: Final answer
x = 380,293.06
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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.