Finding the Fourth Proportional to 420,917.60, 580,866.14 and 227,325.36
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Solution
The fourth proportional to 420,917.60, 580,866.14 and 227,325.36 is: 313,708.92
Step by Step Solution
- Step 1: Write the proportion equation
420,917.60 : 580,866.14 = 227,325.36 : x - Step 2: Convert to fraction form
420,917.60/580,866.14 = 227,325.36/x - Step 3: Cross multiply
420,917.60x = 580,866.14 × 227,325.36 - Step 4: Simplify right side
420,917.60x = 132,045,604,387.31 - Step 5: Solve for x
x = 132,045,604,387.31/420,917.60 - Step 6: Final answer
x = 313,708.92
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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.