Finding the Fourth Proportional to 412,202.20, 618,497.70 and 307,226.20
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Solution
The fourth proportional to 412,202.20, 618,497.70 and 307,226.20 is: 460,984.19
Step by Step Solution
- Step 1: Write the proportion equation
412,202.20 : 618,497.70 = 307,226.20 : x - Step 2: Convert to fraction form
412,202.20/618,497.70 = 307,226.20/x - Step 3: Cross multiply
412,202.20x = 618,497.70 × 307,226.20 - Step 4: Simplify right side
412,202.20x = 190,018,698,079.74 - Step 5: Solve for x
x = 190,018,698,079.74/412,202.20 - Step 6: Final answer
x = 460,984.19
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1.5x scale
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.