Finding the Fourth Proportional to 438,422.68, 657,591.35 and 297,175.63
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Solution
The fourth proportional to 438,422.68, 657,591.35 and 297,175.63 is: 445,734.51
Step by Step Solution
- Step 1: Write the proportion equation
438,422.68 : 657,591.35 = 297,175.63 : x - Step 2: Convert to fraction form
438,422.68/657,591.35 = 297,175.63/x - Step 3: Cross multiply
438,422.68x = 657,591.35 × 297,175.63 - Step 4: Simplify right side
438,422.68x = 195,420,119,592.32 - Step 5: Solve for x
x = 195,420,119,592.32/438,422.68 - Step 6: Final answer
x = 445,734.51
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1.5x scale
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.