Finding the Fourth Proportional to 1,252,839.62, 1,728,919.79 and 679,879.79
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Solution
The fourth proportional to 1,252,839.62, 1,728,919.79 and 679,879.79 is: 938,234.71
Step by Step Solution
- Step 1: Write the proportion equation
1,252,839.62 : 1,728,919.79 = 679,879.79 : x - Step 2: Convert to fraction form
1,252,839.62/1,728,919.79 = 679,879.79/x - Step 3: Cross multiply
1,252,839.62x = 1,728,919.79 × 679,879.79 - Step 4: Simplify right side
1,252,839.62x = 1,175,457,616,807.14 - Step 5: Solve for x
x = 1,175,457,616,807.14/1,252,839.62 - Step 6: Final answer
x = 938,234.71
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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.