Finding the Fourth Proportional to 1,646,609.42, 2,271,266.70 and 1,320,704.47
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Solution
The fourth proportional to 1,646,609.42, 2,271,266.70 and 1,320,704.47 is: 1,821,726.54
Step by Step Solution
- Step 1: Write the proportion equation
1,646,609.42 : 2,271,266.70 = 1,320,704.47 : x - Step 2: Convert to fraction form
1,646,609.42/2,271,266.70 = 1,320,704.47/x - Step 3: Cross multiply
1,646,609.42x = 2,271,266.70 × 1,320,704.47 - Step 4: Simplify right side
1,646,609.42x = 2,999,672,085,894.10 - Step 5: Solve for x
x = 2,999,672,085,894.10/1,646,609.42 - Step 6: Final answer
x = 1,821,726.54
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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.