Finding the Fourth Proportional to 469,409.84, 648,140.36 and 288,369.84
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Solution
The fourth proportional to 469,409.84, 648,140.36 and 288,369.84 is: 398,168.33
Step by Step Solution
- Step 1: Write the proportion equation
469,409.84 : 648,140.36 = 288,369.84 : x - Step 2: Convert to fraction form
469,409.84/648,140.36 = 288,369.84/x - Step 3: Cross multiply
469,409.84x = 648,140.36 × 288,369.84 - Step 4: Simplify right side
469,409.84x = 186,904,131,910.74 - Step 5: Solve for x
x = 186,904,131,910.74/469,409.84 - Step 6: Final answer
x = 398,168.33
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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.