Finding the Fourth Proportional to 678,199.44, 935,917.80 and 376,393.44
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Solution
The fourth proportional to 678,199.44, 935,917.80 and 376,393.44 is: 519,424.38
Step by Step Solution
- Step 1: Write the proportion equation
678,199.44 : 935,917.80 = 376,393.44 : x - Step 2: Convert to fraction form
678,199.44/935,917.80 = 376,393.44/x - Step 3: Cross multiply
678,199.44x = 935,917.80 × 376,393.44 - Step 4: Simplify right side
678,199.44x = 352,273,320,299.23 - Step 5: Solve for x
x = 352,273,320,299.23/678,199.44 - Step 6: Final answer
x = 519,424.38
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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.