Finding the Fourth Proportional to 3,440,991.81, 4,748,645.76 and 1,892,155.32
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Solution
The fourth proportional to 3,440,991.81, 4,748,645.76 and 1,892,155.32 is: 2,611,216.72
Step by Step Solution
- Step 1: Write the proportion equation
3,440,991.81 : 4,748,645.76 = 1,892,155.32 : x - Step 2: Convert to fraction form
3,440,991.81/4,748,645.76 = 1,892,155.32/x - Step 3: Cross multiply
3,440,991.81x = 4,748,645.76 × 1,892,155.32 - Step 4: Simplify right side
3,440,991.81x = 8,985,175,337,579.44 - Step 5: Solve for x
x = 8,985,175,337,579.44/3,440,991.81 - Step 6: Final answer
x = 2,611,216.72
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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.