Finding the Fourth Proportional to 3,110,909.70, 4,293,054.41 and 1,680,125.70
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Solution
The fourth proportional to 3,110,909.70, 4,293,054.41 and 1,680,125.70 is: 2,318,572.94
Step by Step Solution
- Step 1: Write the proportion equation
3,110,909.70 : 4,293,054.41 = 1,680,125.70 : x - Step 2: Convert to fraction form
3,110,909.70/4,293,054.41 = 1,680,125.70/x - Step 3: Cross multiply
3,110,909.70x = 4,293,054.41 × 1,680,125.70 - Step 4: Simplify right side
3,110,909.70x = 7,212,871,045,739.34 - Step 5: Solve for x
x = 7,212,871,045,739.34/3,110,909.70 - Step 6: Final answer
x = 2,318,572.94
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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.