Finding the Fourth Proportional to 620,239.92, 855,882.36 and 351,967.92
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Solution
The fourth proportional to 620,239.92, 855,882.36 and 351,967.92 is: 485,688.08
Step by Step Solution
- Step 1: Write the proportion equation
620,239.92 : 855,882.36 = 351,967.92 : x - Step 2: Convert to fraction form
620,239.92/855,882.36 = 351,967.92/x - Step 3: Cross multiply
620,239.92x = 855,882.36 × 351,967.92 - Step 4: Simplify right side
620,239.92x = 301,243,134,013.89 - Step 5: Solve for x
x = 301,243,134,013.89/620,239.92 - Step 6: Final answer
x = 485,688.08
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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.