Finding the Fourth Proportional to 1,190,962.71, 1,643,508.63 and 647,106.84
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Solution
The fourth proportional to 1,190,962.71, 1,643,508.63 and 647,106.84 is: 892,996.62
Step by Step Solution
- Step 1: Write the proportion equation
1,190,962.71 : 1,643,508.63 = 647,106.84 : x - Step 2: Convert to fraction form
1,190,962.71/1,643,508.63 = 647,106.84/x - Step 3: Cross multiply
1,190,962.71x = 1,643,508.63 × 647,106.84 - Step 4: Simplify right side
1,190,962.71x = 1,063,525,676,072.03 - Step 5: Solve for x
x = 1,063,525,676,072.03/1,190,962.71 - Step 6: Final answer
x = 892,996.62
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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.