Finding the Fourth Proportional to 559,008.87, 771,415.38 and 310,649.97
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Solution
The fourth proportional to 559,008.87, 771,415.38 and 310,649.97 is: 428,687.59
Step by Step Solution
- Step 1: Write the proportion equation
559,008.87 : 771,415.38 = 310,649.97 : x - Step 2: Convert to fraction form
559,008.87/771,415.38 = 310,649.97/x - Step 3: Cross multiply
559,008.87x = 771,415.38 × 310,649.97 - Step 4: Simplify right side
559,008.87x = 239,640,164,654.54 - Step 5: Solve for x
x = 239,640,164,654.54/559,008.87 - Step 6: Final answer
x = 428,687.59
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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.