Finding the Fourth Proportional to 892,415.40, 1,339,154.99 and 323,840.87
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Solution
The fourth proportional to 892,415.40, 1,339,154.99 and 323,840.87 is: 485,954.31
Step by Step Solution
- Step 1: Write the proportion equation
892,415.40 : 1,339,154.99 = 323,840.87 : x - Step 2: Convert to fraction form
892,415.40/1,339,154.99 = 323,840.87/x - Step 3: Cross multiply
892,415.40x = 1,339,154.99 × 323,840.87 - Step 4: Simplify right side
892,415.40x = 433,673,108,711.46 - Step 5: Solve for x
x = 433,673,108,711.46/892,415.40 - Step 6: Final answer
x = 485,954.31
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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.