Finding the Fourth Proportional to 415,825.92, 620,730.85 and 365,380.74
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Solution
The fourth proportional to 415,825.92, 620,730.85 and 365,380.74 is: 545,427.99
Step by Step Solution
- Step 1: Write the proportion equation
415,825.92 : 620,730.85 = 365,380.74 : x - Step 2: Convert to fraction form
415,825.92/620,730.85 = 365,380.74/x - Step 3: Cross multiply
415,825.92x = 620,730.85 × 365,380.74 - Step 4: Simplify right side
415,825.92x = 226,803,097,313.83 - Step 5: Solve for x
x = 226,803,097,313.83/415,825.92 - Step 6: Final answer
x = 545,427.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.