Finding the Fourth Proportional to 663,253.12, 915,029.48 and 408,161.44
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Solution
The fourth proportional to 663,253.12, 915,029.48 and 408,161.44 is: 563,102.89
Step by Step Solution
- Step 1: Write the proportion equation
663,253.12 : 915,029.48 = 408,161.44 : x - Step 2: Convert to fraction form
663,253.12/915,029.48 = 408,161.44/x - Step 3: Cross multiply
663,253.12x = 915,029.48 × 408,161.44 - Step 4: Simplify right side
663,253.12x = 373,479,750,199.25 - Step 5: Solve for x
x = 373,479,750,199.25/663,253.12 - Step 6: Final answer
x = 563,102.89
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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.