Finding the Fourth Proportional to 558,628.71, 838,358.79 and 274,471.80
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Solution
The fourth proportional to 558,628.71, 838,358.79 and 274,471.80 is: 411,911.96
Step by Step Solution
- Step 1: Write the proportion equation
558,628.71 : 838,358.79 = 274,471.80 : x - Step 2: Convert to fraction form
558,628.71/838,358.79 = 274,471.80/x - Step 3: Cross multiply
558,628.71x = 838,358.79 × 274,471.80 - Step 4: Simplify right side
558,628.71x = 230,105,846,137.12 - Step 5: Solve for x
x = 230,105,846,137.12/558,628.71 - Step 6: Final answer
x = 411,911.96
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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.