Finding the Fourth Proportional to 678,025.08, 935,680.14 and 376,224.12
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Solution
The fourth proportional to 678,025.08, 935,680.14 and 376,224.12 is: 519,192.35
Step by Step Solution
- Step 1: Write the proportion equation
678,025.08 : 935,680.14 = 376,224.12 : x - Step 2: Convert to fraction form
678,025.08/935,680.14 = 376,224.12/x - Step 3: Cross multiply
678,025.08x = 935,680.14 × 376,224.12 - Step 4: Simplify right side
678,025.08x = 352,025,437,272.98 - Step 5: Solve for x
x = 352,025,437,272.98/678,025.08 - Step 6: Final answer
x = 519,192.35
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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.