Finding the Fourth Proportional to 499,316.67, 689,057.01 and 272,962.17
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Solution
The fourth proportional to 499,316.67, 689,057.01 and 272,962.17 is: 376,687.80
Step by Step Solution
- Step 1: Write the proportion equation
499,316.67 : 689,057.01 = 272,962.17 : x - Step 2: Convert to fraction form
499,316.67/689,057.01 = 272,962.17/x - Step 3: Cross multiply
499,316.67x = 689,057.01 × 272,962.17 - Step 4: Simplify right side
499,316.67x = 188,086,496,703.31 - Step 5: Solve for x
x = 188,086,496,703.31/499,316.67 - Step 6: Final answer
x = 376,687.80
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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.