Finding the Fourth Proportional to 1,451,381.40, 2,175,257.70 and 741,691.80
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Solution
The fourth proportional to 1,451,381.40, 2,175,257.70 and 741,691.80 is: 1,111,610.50
Step by Step Solution
- Step 1: Write the proportion equation
1,451,381.40 : 2,175,257.70 = 741,691.80 : x - Step 2: Convert to fraction form
1,451,381.40/2,175,257.70 = 741,691.80/x - Step 3: Cross multiply
1,451,381.40x = 2,175,257.70 × 741,691.80 - Step 4: Simplify right side
1,451,381.40x = 1,613,370,798,976.86 - Step 5: Solve for x
x = 1,613,370,798,976.86/1,451,381.40 - Step 6: Final answer
x = 1,111,610.50
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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.