Finding the Fourth Proportional to 913,631.34, 1,260,822.36 and 505,770.90
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Solution
The fourth proportional to 913,631.34, 1,260,822.36 and 505,770.90 is: 697,969.99
Step by Step Solution
- Step 1: Write the proportion equation
913,631.34 : 1,260,822.36 = 505,770.90 : x - Step 2: Convert to fraction form
913,631.34/1,260,822.36 = 505,770.90/x - Step 3: Cross multiply
913,631.34x = 1,260,822.36 × 505,770.90 - Step 4: Simplify right side
913,631.34x = 637,687,259,757.32 - Step 5: Solve for x
x = 637,687,259,757.32/913,631.34 - Step 6: Final answer
x = 697,969.99
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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.