Finding the Fourth Proportional to 395,787.40, 593,681.10 and 115,313.80
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Solution
The fourth proportional to 395,787.40, 593,681.10 and 115,313.80 is: 172,970.70
Step by Step Solution
- Step 1: Write the proportion equation
395,787.40 : 593,681.10 = 115,313.80 : x - Step 2: Convert to fraction form
395,787.40/593,681.10 = 115,313.80/x - Step 3: Cross multiply
395,787.40x = 593,681.10 × 115,313.80 - Step 4: Simplify right side
395,787.40x = 68,459,623,629.18 - Step 5: Solve for x
x = 68,459,623,629.18/395,787.40 - Step 6: Final answer
x = 172,970.70
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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.