Finding the Fourth Proportional to 648,368.19, 894,757.95 and 361,910.07
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Solution
The fourth proportional to 648,368.19, 894,757.95 and 361,910.07 is: 499,441.39
Step by Step Solution
- Step 1: Write the proportion equation
648,368.19 : 894,757.95 = 361,910.07 : x - Step 2: Convert to fraction form
648,368.19/894,757.95 = 361,910.07/x - Step 3: Cross multiply
648,368.19x = 894,757.95 × 361,910.07 - Step 4: Simplify right side
648,368.19x = 323,821,912,317.56 - Step 5: Solve for x
x = 323,821,912,317.56/648,368.19 - Step 6: Final answer
x = 499,441.39
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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.