Finding the Fourth Proportional to 412,829.20, 619,243.80 and 202,877.20
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Solution
The fourth proportional to 412,829.20, 619,243.80 and 202,877.20 is: 304,315.80
Step by Step Solution
- Step 1: Write the proportion equation
412,829.20 : 619,243.80 = 202,877.20 : x - Step 2: Convert to fraction form
412,829.20/619,243.80 = 202,877.20/x - Step 3: Cross multiply
412,829.20x = 619,243.80 × 202,877.20 - Step 4: Simplify right side
412,829.20x = 125,630,448,261.36 - Step 5: Solve for x
x = 125,630,448,261.36/412,829.20 - Step 6: Final answer
x = 304,315.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.