Finding the Fourth Proportional to 1,190,385.34, 1,642,743.63 and 646,531.75
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Solution
The fourth proportional to 1,190,385.34, 1,642,743.63 and 646,531.75 is: 892,220.26
Step by Step Solution
- Step 1: Write the proportion equation
1,190,385.34 : 1,642,743.63 = 646,531.75 : x - Step 2: Convert to fraction form
1,190,385.34/1,642,743.63 = 646,531.75/x - Step 3: Cross multiply
1,190,385.34x = 1,642,743.63 × 646,531.75 - Step 4: Simplify right side
1,190,385.34x = 1,062,085,913,905.25 - Step 5: Solve for x
x = 1,062,085,913,905.25/1,190,385.34 - Step 6: Final answer
x = 892,220.26
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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.