Finding the Fourth Proportional to 812,438.93, 1,121,152.02 and 449,855
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Solution
The fourth proportional to 812,438.93, 1,121,152.02 and 449,855 is: 620,792.31
Step by Step Solution
- Step 1: Write the proportion equation
812,438.93 : 1,121,152.02 = 449,855 : x - Step 2: Convert to fraction form
812,438.93/1,121,152.02 = 449,855/x - Step 3: Cross multiply
812,438.93x = 1,121,152.02 × 449,855 - Step 4: Simplify right side
812,438.93x = 504,355,841,957.10 - Step 5: Solve for x
x = 504,355,841,957.10/812,438.93 - Step 6: Final answer
x = 620,792.31
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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.