Finding the Fourth Proportional to 741,915.84, 1,112,955.36 and 236,359.20
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Solution
The fourth proportional to 741,915.84, 1,112,955.36 and 236,359.20 is: 354,564.80
Step by Step Solution
- Step 1: Write the proportion equation
741,915.84 : 1,112,955.36 = 236,359.20 : x - Step 2: Convert to fraction form
741,915.84/1,112,955.36 = 236,359.20/x - Step 3: Cross multiply
741,915.84x = 1,112,955.36 × 236,359.20 - Step 4: Simplify right side
741,915.84x = 263,057,238,525.31 - Step 5: Solve for x
x = 263,057,238,525.31/741,915.84 - Step 6: Final answer
x = 354,564.80
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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.