Finding the Fourth Proportional to 724,706.26, 1,000,186.92 and 438,228.40
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Solution
The fourth proportional to 724,706.26, 1,000,186.92 and 438,228.40 is: 604,810.99
Step by Step Solution
- Step 1: Write the proportion equation
724,706.26 : 1,000,186.92 = 438,228.40 : x - Step 2: Convert to fraction form
724,706.26/1,000,186.92 = 438,228.40/x - Step 3: Cross multiply
724,706.26x = 1,000,186.92 × 438,228.40 - Step 4: Simplify right side
724,706.26x = 438,310,313,652.53 - Step 5: Solve for x
x = 438,310,313,652.53/724,706.26 - Step 6: Final answer
x = 604,810.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.