Finding the Fourth Proportional to 2,531,430.22, 3,493,347.09 and 1,369,851.05
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Solution
The fourth proportional to 2,531,430.22, 3,493,347.09 and 1,369,851.05 is: 1,890,380.05
Step by Step Solution
- Step 1: Write the proportion equation
2,531,430.22 : 3,493,347.09 = 1,369,851.05 : x - Step 2: Convert to fraction form
2,531,430.22/3,493,347.09 = 1,369,851.05/x - Step 3: Cross multiply
2,531,430.22x = 3,493,347.09 × 1,369,851.05 - Step 4: Simplify right side
2,531,430.22x = 4,785,365,179,250.94 - Step 5: Solve for x
x = 4,785,365,179,250.94/2,531,430.22 - Step 6: Final answer
x = 1,890,380.05
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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.