Finding the Fourth Proportional to 2,173,364.20, 3,261,212.70 and 911,319.40
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Solution
The fourth proportional to 2,173,364.20, 3,261,212.70 and 911,319.40 is: 1,367,468.19
Step by Step Solution
- Step 1: Write the proportion equation
2,173,364.20 : 3,261,212.70 = 911,319.40 : x - Step 2: Convert to fraction form
2,173,364.20/3,261,212.70 = 911,319.40/x - Step 3: Cross multiply
2,173,364.20x = 3,261,212.70 × 911,319.40 - Step 4: Simplify right side
2,173,364.20x = 2,972,006,401,036.38 - Step 5: Solve for x
x = 2,972,006,401,036.38/2,173,364.20 - Step 6: Final answer
x = 1,367,468.19
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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.