Finding the Fourth Proportional to 822,243.80, 1,232,804.42 and 438,050.09
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Solution
The fourth proportional to 822,243.80, 1,232,804.42 and 438,050.09 is: 656,776.11
Step by Step Solution
- Step 1: Write the proportion equation
822,243.80 : 1,232,804.42 = 438,050.09 : x - Step 2: Convert to fraction form
822,243.80/1,232,804.42 = 438,050.09/x - Step 3: Cross multiply
822,243.80x = 1,232,804.42 × 438,050.09 - Step 4: Simplify right side
822,243.80x = 540,030,078,779.13 - Step 5: Solve for x
x = 540,030,078,779.13/822,243.80 - Step 6: Final answer
x = 656,776.11
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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.