Finding the Fourth Proportional to 490,757.28, 736,143.36 and 323,349.84
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Solution
The fourth proportional to 490,757.28, 736,143.36 and 323,349.84 is: 485,029.66
Step by Step Solution
- Step 1: Write the proportion equation
490,757.28 : 736,143.36 = 323,349.84 : x - Step 2: Convert to fraction form
490,757.28/736,143.36 = 323,349.84/x - Step 3: Cross multiply
490,757.28x = 736,143.36 × 323,349.84 - Step 4: Simplify right side
490,757.28x = 238,031,837,673.06 - Step 5: Solve for x
x = 238,031,837,673.06/490,757.28 - Step 6: Final answer
x = 485,029.66
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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.