Finding the Fourth Proportional to 492,705.97, 679,936.12 and 274,923.82
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Solution
The fourth proportional to 492,705.97, 679,936.12 and 274,923.82 is: 379,395.92
Step by Step Solution
- Step 1: Write the proportion equation
492,705.97 : 679,936.12 = 274,923.82 : x - Step 2: Convert to fraction form
492,705.97/679,936.12 = 274,923.82/x - Step 3: Cross multiply
492,705.97x = 679,936.12 × 274,923.82 - Step 4: Simplify right side
492,705.97x = 186,930,636,946.30 - Step 5: Solve for x
x = 186,930,636,946.30/492,705.97 - Step 6: Final answer
x = 379,395.92
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1.5x scale
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.