Finding the Fourth Proportional to 492,005.61, 678,946.74 and 274,202.70
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Solution
The fourth proportional to 492,005.61, 678,946.74 and 274,202.70 is: 378,388.02
Step by Step Solution
- Step 1: Write the proportion equation
492,005.61 : 678,946.74 = 274,202.70 : x - Step 2: Convert to fraction form
492,005.61/678,946.74 = 274,202.70/x - Step 3: Cross multiply
492,005.61x = 678,946.74 × 274,202.70 - Step 4: Simplify right side
492,005.61x = 186,169,029,264.20 - Step 5: Solve for x
x = 186,169,029,264.20/492,005.61 - Step 6: Final answer
x = 378,388.02
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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.