Finding the Fourth Proportional to 406,812.16, 561,664.29 and 261,682.84
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Solution
The fourth proportional to 406,812.16, 561,664.29 and 261,682.84 is: 361,291.82
Step by Step Solution
- Step 1: Write the proportion equation
406,812.16 : 561,664.29 = 261,682.84 : x - Step 2: Convert to fraction form
406,812.16/561,664.29 = 261,682.84/x - Step 3: Cross multiply
406,812.16x = 561,664.29 × 261,682.84 - Step 4: Simplify right side
406,812.16x = 146,977,906,533.78 - Step 5: Solve for x
x = 146,977,906,533.78/406,812.16 - Step 6: Final answer
x = 361,291.82
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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.