Finding the Fourth Proportional to 901,979.06, 1,244,259.19 and 557,704.94
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Solution
The fourth proportional to 901,979.06, 1,244,259.19 and 557,704.94 is: 769,341.03
Step by Step Solution
- Step 1: Write the proportion equation
901,979.06 : 1,244,259.19 = 557,704.94 : x - Step 2: Convert to fraction form
901,979.06/1,244,259.19 = 557,704.94/x - Step 3: Cross multiply
901,979.06x = 1,244,259.19 × 557,704.94 - Step 4: Simplify right side
901,979.06x = 693,929,496,903.40 - Step 5: Solve for x
x = 693,929,496,903.40/901,979.06 - Step 6: Final answer
x = 769,341.03
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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.