Finding the Fourth Proportional to 936,134.48, 1,290,694.20 and 781,307.12
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Solution
The fourth proportional to 936,134.48, 1,290,694.20 and 781,307.12 is: 1,077,226.18
Step by Step Solution
- Step 1: Write the proportion equation
936,134.48 : 1,290,694.20 = 781,307.12 : x - Step 2: Convert to fraction form
936,134.48/1,290,694.20 = 781,307.12/x - Step 3: Cross multiply
936,134.48x = 1,290,694.20 × 781,307.12 - Step 4: Simplify right side
936,134.48x = 1,008,428,568,202.70 - Step 5: Solve for x
x = 1,008,428,568,202.70/936,134.48 - Step 6: Final answer
x = 1,077,226.18
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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.