Finding the Fourth Proportional to 487,418.99, 730,629.99 and 187,782.17
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Solution
The fourth proportional to 487,418.99, 730,629.99 and 187,782.17 is: 281,481.20
Step by Step Solution
- Step 1: Write the proportion equation
487,418.99 : 730,629.99 = 187,782.17 : x - Step 2: Convert to fraction form
487,418.99/730,629.99 = 187,782.17/x - Step 3: Cross multiply
487,418.99x = 730,629.99 × 187,782.17 - Step 4: Simplify right side
487,418.99x = 137,199,281,336.13 - Step 5: Solve for x
x = 137,199,281,336.13/487,418.99 - Step 6: Final answer
x = 281,481.20
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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.