Finding the Fourth Proportional to 413,533.10, 620,386.05 and 133,078.70
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Solution
The fourth proportional to 413,533.10, 620,386.05 and 133,078.70 is: 199,645.85
Step by Step Solution
- Step 1: Write the proportion equation
413,533.10 : 620,386.05 = 133,078.70 : x - Step 2: Convert to fraction form
413,533.10/620,386.05 = 133,078.70/x - Step 3: Cross multiply
413,533.10x = 620,386.05 × 133,078.70 - Step 4: Simplify right side
413,533.10x = 82,560,169,032.14 - Step 5: Solve for x
x = 82,560,169,032.14/413,533.10 - Step 6: Final answer
x = 199,645.85
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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.