Finding the Fourth Proportional to 545,305.28, 752,467.68 and 318,906.56
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Solution
The fourth proportional to 545,305.28, 752,467.68 and 318,906.56 is: 440,059.70
Step by Step Solution
- Step 1: Write the proportion equation
545,305.28 : 752,467.68 = 318,906.56 : x - Step 2: Convert to fraction form
545,305.28/752,467.68 = 318,906.56/x - Step 3: Cross multiply
545,305.28x = 752,467.68 × 318,906.56 - Step 4: Simplify right side
545,305.28x = 239,966,879,339.98 - Step 5: Solve for x
x = 239,966,879,339.98/545,305.28 - Step 6: Final answer
x = 440,059.70
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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.