Finding the Fourth Proportional to 753,431.20, 1,130,146.80 and 192,465.70
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Solution
The fourth proportional to 753,431.20, 1,130,146.80 and 192,465.70 is: 288,698.55
Step by Step Solution
- Step 1: Write the proportion equation
753,431.20 : 1,130,146.80 = 192,465.70 : x - Step 2: Convert to fraction form
753,431.20/1,130,146.80 = 192,465.70/x - Step 3: Cross multiply
753,431.20x = 1,130,146.80 × 192,465.70 - Step 4: Simplify right side
753,431.20x = 217,514,494,964.76 - Step 5: Solve for x
x = 217,514,494,964.76/753,431.20 - Step 6: Final answer
x = 288,698.55
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Similar ratio
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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.