Finding the Fourth Proportional to 522,676.47, 721,206.09 and 307,859.31
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Solution
The fourth proportional to 522,676.47, 721,206.09 and 307,859.31 is: 424,794.35
Step by Step Solution
- Step 1: Write the proportion equation
522,676.47 : 721,206.09 = 307,859.31 : x - Step 2: Convert to fraction form
522,676.47/721,206.09 = 307,859.31/x - Step 3: Cross multiply
522,676.47x = 721,206.09 × 307,859.31 - Step 4: Simplify right side
522,676.47x = 222,030,009,235.20 - Step 5: Solve for x
x = 222,030,009,235.20/522,676.47 - Step 6: Final answer
x = 424,794.35
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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.