Finding the Fourth Proportional to 734,701.80, 1,102,052.70 and 261,402.60
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Solution
The fourth proportional to 734,701.80, 1,102,052.70 and 261,402.60 is: 392,103.90
Step by Step Solution
- Step 1: Write the proportion equation
734,701.80 : 1,102,052.70 = 261,402.60 : x - Step 2: Convert to fraction form
734,701.80/1,102,052.70 = 261,402.60/x - Step 3: Cross multiply
734,701.80x = 1,102,052.70 × 261,402.60 - Step 4: Simplify right side
734,701.80x = 288,079,441,117.02 - Step 5: Solve for x
x = 288,079,441,117.02/734,701.80 - Step 6: Final answer
x = 392,103.90
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Half scale
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Double scale
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Similar ratio
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1.5x scale
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.