Finding the Fourth Proportional to 1,190,845.42, 1,643,385.33 and 646,991.98
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Solution
The fourth proportional to 1,190,845.42, 1,643,385.33 and 646,991.98 is: 892,859.07
Step by Step Solution
- Step 1: Write the proportion equation
1,190,845.42 : 1,643,385.33 = 646,991.98 : x - Step 2: Convert to fraction form
1,190,845.42/1,643,385.33 = 646,991.98/x - Step 3: Cross multiply
1,190,845.42x = 1,643,385.33 × 646,991.98 - Step 4: Simplify right side
1,190,845.42x = 1,063,257,128,559.65 - Step 5: Solve for x
x = 1,063,257,128,559.65/1,190,845.42 - Step 6: Final answer
x = 892,859.07
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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.