Finding the Fourth Proportional to 988,803.99, 1,483,208.41 and 278,835.75
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Solution
The fourth proportional to 988,803.99, 1,483,208.41 and 278,835.75 is: 418,254.31
Step by Step Solution
- Step 1: Write the proportion equation
988,803.99 : 1,483,208.41 = 278,835.75 : x - Step 2: Convert to fraction form
988,803.99/1,483,208.41 = 278,835.75/x - Step 3: Cross multiply
988,803.99x = 1,483,208.41 × 278,835.75 - Step 4: Simplify right side
988,803.99x = 413,571,529,408.66 - Step 5: Solve for x
x = 413,571,529,408.66/988,803.99 - Step 6: Final answer
x = 418,254.31
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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.