Finding the Fourth Proportional to 3,854,871.09, 5,778,237.68 and 1,293,657.62
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Solution
The fourth proportional to 3,854,871.09, 5,778,237.68 and 1,293,657.62 is: 1,939,120.93
Step by Step Solution
- Step 1: Write the proportion equation
3,854,871.09 : 5,778,237.68 = 1,293,657.62 : x - Step 2: Convert to fraction form
3,854,871.09/5,778,237.68 = 1,293,657.62/x - Step 3: Cross multiply
3,854,871.09x = 5,778,237.68 × 1,293,657.62 - Step 4: Simplify right side
3,854,871.09x = 7,475,061,212,880.43 - Step 5: Solve for x
x = 7,475,061,212,880.43/3,854,871.09 - Step 6: Final answer
x = 1,939,120.93
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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.