Finding the Fourth Proportional to 741,637.20, 1,112,455.80 and 368,389.20
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Solution
The fourth proportional to 741,637.20, 1,112,455.80 and 368,389.20 is: 552,583.80
Step by Step Solution
- Step 1: Write the proportion equation
741,637.20 : 1,112,455.80 = 368,389.20 : x - Step 2: Convert to fraction form
741,637.20/1,112,455.80 = 368,389.20/x - Step 3: Cross multiply
741,637.20x = 1,112,455.80 × 368,389.20 - Step 4: Simplify right side
741,637.20x = 409,816,702,197.36 - Step 5: Solve for x
x = 409,816,702,197.36/741,637.20 - Step 6: Final answer
x = 552,583.80
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1.5x scale
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.