Finding the Fourth Proportional to 616,901.77, 925,125.99 and 211,979.15
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Solution
The fourth proportional to 616,901.77, 925,125.99 and 211,979.15 is: 317,890.84
Step by Step Solution
- Step 1: Write the proportion equation
616,901.77 : 925,125.99 = 211,979.15 : x - Step 2: Convert to fraction form
616,901.77/925,125.99 = 211,979.15/x - Step 3: Cross multiply
616,901.77x = 925,125.99 × 211,979.15 - Step 4: Simplify right side
616,901.77x = 196,107,421,003.11 - Step 5: Solve for x
x = 196,107,421,003.11/616,901.77 - Step 6: Final answer
x = 317,890.84
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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.