Finding the Fourth Proportional to 1,125,109.80, 1,687,664.70 and 451,295.10
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Solution
The fourth proportional to 1,125,109.80, 1,687,664.70 and 451,295.10 is: 676,942.65
Step by Step Solution
- Step 1: Write the proportion equation
1,125,109.80 : 1,687,664.70 = 451,295.10 : x - Step 2: Convert to fraction form
1,125,109.80/1,687,664.70 = 451,295.10/x - Step 3: Cross multiply
1,125,109.80x = 1,687,664.70 × 451,295.10 - Step 4: Simplify right side
1,125,109.80x = 761,634,809,552.97 - Step 5: Solve for x
x = 761,634,809,552.97/1,125,109.80 - Step 6: Final answer
x = 676,942.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.