Finding the Fourth Proportional to 1,693,175.52, 2,539,777.36 and 431,000.80
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Solution
The fourth proportional to 1,693,175.52, 2,539,777.36 and 431,000.80 is: 646,504.78
Step by Step Solution
- Step 1: Write the proportion equation
1,693,175.52 : 2,539,777.36 = 431,000.80 : x - Step 2: Convert to fraction form
1,693,175.52/2,539,777.36 = 431,000.80/x - Step 3: Cross multiply
1,693,175.52x = 2,539,777.36 × 431,000.80 - Step 4: Simplify right side
1,693,175.52x = 1,094,646,073,981.89 - Step 5: Solve for x
x = 1,094,646,073,981.89/1,693,175.52 - Step 6: Final answer
x = 646,504.78
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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.