Finding the Fourth Proportional to 874,338.24, 1,206,563.12 and 492,356.80
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Solution
The fourth proportional to 874,338.24, 1,206,563.12 and 492,356.80 is: 679,439.07
Step by Step Solution
- Step 1: Write the proportion equation
874,338.24 : 1,206,563.12 = 492,356.80 : x - Step 2: Convert to fraction form
874,338.24/1,206,563.12 = 492,356.80/x - Step 3: Cross multiply
874,338.24x = 1,206,563.12 × 492,356.80 - Step 4: Simplify right side
874,338.24x = 594,059,556,761.22 - Step 5: Solve for x
x = 594,059,556,761.22/874,338.24 - Step 6: Final answer
x = 679,439.07
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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.