Finding the Fourth Proportional to 431,567.60, 647,690.40 and 299,378.08
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Solution
The fourth proportional to 431,567.60, 647,690.40 and 299,378.08 is: 449,302.28
Step by Step Solution
- Step 1: Write the proportion equation
431,567.60 : 647,690.40 = 299,378.08 : x - Step 2: Convert to fraction form
431,567.60/647,690.40 = 299,378.08/x - Step 3: Cross multiply
431,567.60x = 647,690.40 × 299,378.08 - Step 4: Simplify right side
431,567.60x = 193,904,308,386.43 - Step 5: Solve for x
x = 193,904,308,386.43/431,567.60 - Step 6: Final answer
x = 449,302.28
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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.