Finding the Fourth Proportional to 567,503.38, 783,160.11 and 312,863.68
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Solution
The fourth proportional to 567,503.38, 783,160.11 and 312,863.68 is: 431,754.88
Step by Step Solution
- Step 1: Write the proportion equation
567,503.38 : 783,160.11 = 312,863.68 : x - Step 2: Convert to fraction form
567,503.38/783,160.11 = 312,863.68/x - Step 3: Cross multiply
567,503.38x = 783,160.11 × 312,863.68 - Step 4: Simplify right side
567,503.38x = 245,022,354,043.81 - Step 5: Solve for x
x = 245,022,354,043.81/567,503.38 - Step 6: Final answer
x = 431,754.88
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Half scale
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Double scale
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Similar ratio
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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.