Finding the Fourth Proportional to 621,808.70, 932,713.05 and 486,506.30
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Solution
The fourth proportional to 621,808.70, 932,713.05 and 486,506.30 is: 729,759.45
Step by Step Solution
- Step 1: Write the proportion equation
621,808.70 : 932,713.05 = 486,506.30 : x - Step 2: Convert to fraction form
621,808.70/932,713.05 = 486,506.30/x - Step 3: Cross multiply
621,808.70x = 932,713.05 × 486,506.30 - Step 4: Simplify right side
621,808.70x = 453,770,774,917.22 - Step 5: Solve for x
x = 453,770,774,917.22/621,808.70 - Step 6: Final answer
x = 729,759.45
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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.