Finding the Fourth Proportional to 455,586.14, 628,733.39 and 261,991.55
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Solution
The fourth proportional to 455,586.14, 628,733.39 and 261,991.55 is: 361,562.43
Step by Step Solution
- Step 1: Write the proportion equation
455,586.14 : 628,733.39 = 261,991.55 : x - Step 2: Convert to fraction form
455,586.14/628,733.39 = 261,991.55/x - Step 3: Cross multiply
455,586.14x = 628,733.39 × 261,991.55 - Step 4: Simplify right side
455,586.14x = 164,722,830,929.23 - Step 5: Solve for x
x = 164,722,830,929.23/455,586.14 - Step 6: Final answer
x = 361,562.43
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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.