Finding the Fourth Proportional to 394,397.19, 592,121.16 and 266,742.18
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Solution
The fourth proportional to 394,397.19, 592,121.16 and 266,742.18 is: 400,468.60
Step by Step Solution
- Step 1: Write the proportion equation
394,397.19 : 592,121.16 = 266,742.18 : x - Step 2: Convert to fraction form
394,397.19/592,121.16 = 266,742.18/x - Step 3: Cross multiply
394,397.19x = 592,121.16 × 266,742.18 - Step 4: Simplify right side
394,397.19x = 157,943,689,042.53 - Step 5: Solve for x
x = 157,943,689,042.53/394,397.19 - Step 6: Final answer
x = 400,468.60
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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.