Finding the Fourth Proportional to 527,490.99, 727,922.41 and 309,696.03
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Solution
The fourth proportional to 527,490.99, 727,922.41 and 309,696.03 is: 427,371.62
Step by Step Solution
- Step 1: Write the proportion equation
527,490.99 : 727,922.41 = 309,696.03 : x - Step 2: Convert to fraction form
527,490.99/727,922.41 = 309,696.03/x - Step 3: Cross multiply
527,490.99x = 727,922.41 × 309,696.03 - Step 4: Simplify right side
527,490.99x = 225,434,680,525.03 - Step 5: Solve for x
x = 225,434,680,525.03/527,490.99 - Step 6: Final answer
x = 427,371.62
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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.