Finding the Fourth Proportional to 748,228.20, 1,122,342.30 and 187,261.80
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Solution
The fourth proportional to 748,228.20, 1,122,342.30 and 187,261.80 is: 280,892.70
Step by Step Solution
- Step 1: Write the proportion equation
748,228.20 : 1,122,342.30 = 187,261.80 : x - Step 2: Convert to fraction form
748,228.20/1,122,342.30 = 187,261.80/x - Step 3: Cross multiply
748,228.20x = 1,122,342.30 × 187,261.80 - Step 4: Simplify right side
748,228.20x = 210,171,839,314.14 - Step 5: Solve for x
x = 210,171,839,314.14/748,228.20 - Step 6: Final answer
x = 280,892.70
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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.