Finding the Fourth Proportional to 729,609.99, 1,006,859.28 and 407,317.26
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Solution
The fourth proportional to 729,609.99, 1,006,859.28 and 407,317.26 is: 562,096.42
Step by Step Solution
- Step 1: Write the proportion equation
729,609.99 : 1,006,859.28 = 407,317.26 : x - Step 2: Convert to fraction form
729,609.99/1,006,859.28 = 407,317.26/x - Step 3: Cross multiply
729,609.99x = 1,006,859.28 × 407,317.26 - Step 4: Simplify right side
729,609.99x = 410,111,163,135.17 - Step 5: Solve for x
x = 410,111,163,135.17/729,609.99 - Step 6: Final answer
x = 562,096.42
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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.