Finding the Fourth Proportional to 527,155.36, 727,474.84 and 285,438.06
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Solution
The fourth proportional to 527,155.36, 727,474.84 and 285,438.06 is: 393,904.76
Step by Step Solution
- Step 1: Write the proportion equation
527,155.36 : 727,474.84 = 285,438.06 : x - Step 2: Convert to fraction form
527,155.36/727,474.84 = 285,438.06/x - Step 3: Cross multiply
527,155.36x = 727,474.84 × 285,438.06 - Step 4: Simplify right side
527,155.36x = 207,649,007,028.41 - Step 5: Solve for x
x = 207,649,007,028.41/527,155.36 - Step 6: Final answer
x = 393,904.76
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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.