Finding the Fourth Proportional to 490,718.89, 677,202.99 and 299,837.53
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Solution
The fourth proportional to 490,718.89, 677,202.99 and 299,837.53 is: 413,782.46
Step by Step Solution
- Step 1: Write the proportion equation
490,718.89 : 677,202.99 = 299,837.53 : x - Step 2: Convert to fraction form
490,718.89/677,202.99 = 299,837.53/x - Step 3: Cross multiply
490,718.89x = 677,202.99 × 299,837.53 - Step 4: Simplify right side
490,718.89x = 203,050,871,830.22 - Step 5: Solve for x
x = 203,050,871,830.22/490,718.89 - Step 6: Final answer
x = 413,782.46
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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.