Finding the Fourth Proportional to 438,643.41, 657,988.26 and 123,124.92
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Solution
The fourth proportional to 438,643.41, 657,988.26 and 123,124.92 is: 184,693.88
Step by Step Solution
- Step 1: Write the proportion equation
438,643.41 : 657,988.26 = 123,124.92 : x - Step 2: Convert to fraction form
438,643.41/657,988.26 = 123,124.92/x - Step 3: Cross multiply
438,643.41x = 657,988.26 × 123,124.92 - Step 4: Simplify right side
438,643.41x = 81,014,751,873.44 - Step 5: Solve for x
x = 81,014,751,873.44/438,643.41 - Step 6: Final answer
x = 184,693.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.