Finding the Fourth Proportional to 667,795.55, 921,558.63 and 361,869.25
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Solution
The fourth proportional to 667,795.55, 921,558.63 and 361,869.25 is: 499,379.99
Step by Step Solution
- Step 1: Write the proportion equation
667,795.55 : 921,558.63 = 361,869.25 : x - Step 2: Convert to fraction form
667,795.55/921,558.63 = 361,869.25/x - Step 3: Cross multiply
667,795.55x = 921,558.63 × 361,869.25 - Step 4: Simplify right side
667,795.55x = 333,483,730,269.13 - Step 5: Solve for x
x = 333,483,730,269.13/667,795.55 - Step 6: Final answer
x = 499,379.99
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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.