Finding the Fourth Proportional to 404,755.44, 607,115.12 and 138,539.76
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Solution
The fourth proportional to 404,755.44, 607,115.12 and 138,539.76 is: 207,803.47
Step by Step Solution
- Step 1: Write the proportion equation
404,755.44 : 607,115.12 = 138,539.76 : x - Step 2: Convert to fraction form
404,755.44/607,115.12 = 138,539.76/x - Step 3: Cross multiply
404,755.44x = 607,115.12 × 138,539.76 - Step 4: Simplify right side
404,755.44x = 84,109,583,017.17 - Step 5: Solve for x
x = 84,109,583,017.17/404,755.44 - Step 6: Final answer
x = 207,803.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.