Finding the Fourth Proportional to 660,373.18, 990,000.25 and 261,295.49
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Solution
The fourth proportional to 660,373.18, 990,000.25 and 261,295.49 is: 391,721.85
Step by Step Solution
- Step 1: Write the proportion equation
660,373.18 : 990,000.25 = 261,295.49 : x - Step 2: Convert to fraction form
660,373.18/990,000.25 = 261,295.49/x - Step 3: Cross multiply
660,373.18x = 990,000.25 × 261,295.49 - Step 4: Simplify right side
660,373.18x = 258,682,602,245.63 - Step 5: Solve for x
x = 258,682,602,245.63/660,373.18 - Step 6: Final answer
x = 391,721.85
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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.