Finding the Fourth Proportional to 723,489.53, 1,085,389.81 and 243,765
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Solution
The fourth proportional to 723,489.53, 1,085,389.81 and 243,765 is: 365,699.90
Step by Step Solution
- Step 1: Write the proportion equation
723,489.53 : 1,085,389.81 = 243,765 : x - Step 2: Convert to fraction form
723,489.53/1,085,389.81 = 243,765/x - Step 3: Cross multiply
723,489.53x = 1,085,389.81 × 243,765 - Step 4: Simplify right side
723,489.53x = 264,580,046,425.24 - Step 5: Solve for x
x = 264,580,046,425.24/723,489.53 - Step 6: Final answer
x = 365,699.90
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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.