Finding the Fourth Proportional to 2,811,688.74, 4,217,392.96 and 990,143.56
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Solution
The fourth proportional to 2,811,688.74, 4,217,392.96 and 990,143.56 is: 1,485,165.99
Step by Step Solution
- Step 1: Write the proportion equation
2,811,688.74 : 4,217,392.96 = 990,143.56 : x - Step 2: Convert to fraction form
2,811,688.74/4,217,392.96 = 990,143.56/x - Step 3: Cross multiply
2,811,688.74x = 4,217,392.96 × 990,143.56 - Step 4: Simplify right side
2,811,688.74x = 4,175,824,479,333.34 - Step 5: Solve for x
x = 4,175,824,479,333.34/2,811,688.74 - Step 6: Final answer
x = 1,485,165.99
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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.