Finding the Fourth Proportional to 1,245,551.47, 1,718,988.05 and 762,435.88
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Solution
The fourth proportional to 1,245,551.47, 1,718,988.05 and 762,435.88 is: 1,052,239.27
Step by Step Solution
- Step 1: Write the proportion equation
1,245,551.47 : 1,718,988.05 = 762,435.88 : x - Step 2: Convert to fraction form
1,245,551.47/1,718,988.05 = 762,435.88/x - Step 3: Cross multiply
1,245,551.47x = 1,718,988.05 × 762,435.88 - Step 4: Simplify right side
1,245,551.47x = 1,310,618,164,219.85 - Step 5: Solve for x
x = 1,310,618,164,219.85/1,245,551.47 - Step 6: Final answer
x = 1,052,239.27
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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.