Finding the Fourth Proportional to 619,989.78, 930,329.10 and 335,676.12
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Solution
The fourth proportional to 619,989.78, 930,329.10 and 335,676.12 is: 503,700.66
Step by Step Solution
- Step 1: Write the proportion equation
619,989.78 : 930,329.10 = 335,676.12 : x - Step 2: Convert to fraction form
619,989.78/930,329.10 = 335,676.12/x - Step 3: Cross multiply
619,989.78x = 930,329.10 × 335,676.12 - Step 4: Simplify right side
619,989.78x = 312,289,262,611.09 - Step 5: Solve for x
x = 312,289,262,611.09/619,989.78 - Step 6: Final answer
x = 503,700.66
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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.