Finding the Fourth Proportional to 1,203,477.12, 1,660,875.84 and 666,967.68
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Solution
The fourth proportional to 1,203,477.12, 1,660,875.84 and 666,967.68 is: 920,458.30
Step by Step Solution
- Step 1: Write the proportion equation
1,203,477.12 : 1,660,875.84 = 666,967.68 : x - Step 2: Convert to fraction form
1,203,477.12/1,660,875.84 = 666,967.68/x - Step 3: Cross multiply
1,203,477.12x = 1,660,875.84 × 666,967.68 - Step 4: Simplify right side
1,203,477.12x = 1,107,750,505,772.85 - Step 5: Solve for x
x = 1,107,750,505,772.85/1,203,477.12 - Step 6: Final answer
x = 920,458.30
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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.