Finding the Fourth Proportional to 678,102.75, 935,810.96 and 376,296.75
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Solution
The fourth proportional to 678,102.75, 935,810.96 and 376,296.75 is: 519,305.70
Step by Step Solution
- Step 1: Write the proportion equation
678,102.75 : 935,810.96 = 376,296.75 : x - Step 2: Convert to fraction form
678,102.75/935,810.96 = 376,296.75/x - Step 3: Cross multiply
678,102.75x = 935,810.96 × 376,296.75 - Step 4: Simplify right side
678,102.75x = 352,142,620,980.90 - Step 5: Solve for x
x = 352,142,620,980.90/678,102.75 - Step 6: Final answer
x = 519,305.70
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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.