Finding the Fourth Proportional to 1,948,766.71, 2,687,963.67 and 1,270,621.75
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Solution
The fourth proportional to 1,948,766.71, 2,687,963.67 and 1,270,621.75 is: 1,752,587.98
Step by Step Solution
- Step 1: Write the proportion equation
1,948,766.71 : 2,687,963.67 = 1,270,621.75 : x - Step 2: Convert to fraction form
1,948,766.71/2,687,963.67 = 1,270,621.75/x - Step 3: Cross multiply
1,948,766.71x = 2,687,963.67 × 1,270,621.75 - Step 4: Simplify right side
1,948,766.71x = 3,415,385,102,311.82 - Step 5: Solve for x
x = 3,415,385,102,311.82/1,948,766.71 - Step 6: Final answer
x = 1,752,587.98
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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.