Finding the Fourth Proportional to 481,205.70, 721,808.55 and 402,473.70
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Solution
The fourth proportional to 481,205.70, 721,808.55 and 402,473.70 is: 603,710.55
Step by Step Solution
- Step 1: Write the proportion equation
481,205.70 : 721,808.55 = 402,473.70 : x - Step 2: Convert to fraction form
481,205.70/721,808.55 = 402,473.70/x - Step 3: Cross multiply
481,205.70x = 721,808.55 × 402,473.70 - Step 4: Simplify right side
481,205.70x = 290,508,957,810.14 - Step 5: Solve for x
x = 290,508,957,810.14/481,205.70 - Step 6: Final answer
x = 603,710.55
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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.