Finding the Fourth Proportional to 708,135.90, 1,061,447.49 and 403,874.99
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Solution
The fourth proportional to 708,135.90, 1,061,447.49 and 403,874.99 is: 605,381.11
Step by Step Solution
- Step 1: Write the proportion equation
708,135.90 : 1,061,447.49 = 403,874.99 : x - Step 2: Convert to fraction form
708,135.90/1,061,447.49 = 403,874.99/x - Step 3: Cross multiply
708,135.90x = 1,061,447.49 × 403,874.99 - Step 4: Simplify right side
708,135.90x = 428,692,098,577.43 - Step 5: Solve for x
x = 428,692,098,577.43/708,135.90 - Step 6: Final answer
x = 605,381.11
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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.