Finding the Fourth Proportional to 855,456.99, 1,180,793.46 and 493,123.06
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Solution
The fourth proportional to 855,456.99, 1,180,793.46 and 493,123.06 is: 680,661.32
Step by Step Solution
- Step 1: Write the proportion equation
855,456.99 : 1,180,793.46 = 493,123.06 : x - Step 2: Convert to fraction form
855,456.99/1,180,793.46 = 493,123.06/x - Step 3: Cross multiply
855,456.99x = 1,180,793.46 × 493,123.06 - Step 4: Simplify right side
855,456.99x = 582,276,484,223.19 - Step 5: Solve for x
x = 582,276,484,223.19/855,456.99 - Step 6: Final answer
x = 680,661.32
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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.