Finding the Fourth Proportional to 821,748.44, 1,134,362.06 and 499,561.44
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Solution
The fourth proportional to 821,748.44, 1,134,362.06 and 499,561.44 is: 689,607.08
Step by Step Solution
- Step 1: Write the proportion equation
821,748.44 : 1,134,362.06 = 499,561.44 : x - Step 2: Convert to fraction form
821,748.44/1,134,362.06 = 499,561.44/x - Step 3: Cross multiply
821,748.44x = 1,134,362.06 × 499,561.44 - Step 4: Simplify right side
821,748.44x = 566,683,544,174.97 - Step 5: Solve for x
x = 566,683,544,174.97/821,748.44 - Step 6: Final answer
x = 689,607.08
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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.