Finding the Fourth Proportional to 458,331.57, 687,515.99 and 218,322.09
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Solution
The fourth proportional to 458,331.57, 687,515.99 and 218,322.09 is: 327,492.01
Step by Step Solution
- Step 1: Write the proportion equation
458,331.57 : 687,515.99 = 218,322.09 : x - Step 2: Convert to fraction form
458,331.57/687,515.99 = 218,322.09/x - Step 3: Cross multiply
458,331.57x = 687,515.99 × 218,322.09 - Step 4: Simplify right side
458,331.57x = 150,099,926,753.61 - Step 5: Solve for x
x = 150,099,926,753.61/458,331.57 - Step 6: Final answer
x = 327,492.01
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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.