Finding the Fourth Proportional to 3,036,228.18, 4,190,261.67 and 1,678,363.62
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Solution
The fourth proportional to 3,036,228.18, 4,190,261.67 and 1,678,363.62 is: 2,316,289.27
Step by Step Solution
- Step 1: Write the proportion equation
3,036,228.18 : 4,190,261.67 = 1,678,363.62 : x - Step 2: Convert to fraction form
3,036,228.18/4,190,261.67 = 1,678,363.62/x - Step 3: Cross multiply
3,036,228.18x = 4,190,261.67 × 1,678,363.62 - Step 4: Simplify right side
3,036,228.18x = 7,032,782,745,208.45 - Step 5: Solve for x
x = 7,032,782,745,208.45/3,036,228.18 - Step 6: Final answer
x = 2,316,289.27
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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.