Finding the Fourth Proportional to 545,117.70, 816,121.35 and 482,909.70
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Solution
The fourth proportional to 545,117.70, 816,121.35 and 482,909.70 is: 722,986.83
Step by Step Solution
- Step 1: Write the proportion equation
545,117.70 : 816,121.35 = 482,909.70 : x - Step 2: Convert to fraction form
545,117.70/816,121.35 = 482,909.70/x - Step 3: Cross multiply
545,117.70x = 816,121.35 × 482,909.70 - Step 4: Simplify right side
545,117.70x = 394,112,916,292.10 - Step 5: Solve for x
x = 394,112,916,292.10/545,117.70 - Step 6: Final answer
x = 722,986.83
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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.