Finding the Fourth Proportional to 641,135.81, 884,690.35 and 369,292.12
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Solution
The fourth proportional to 641,135.81, 884,690.35 and 369,292.12 is: 509,578.73
Step by Step Solution
- Step 1: Write the proportion equation
641,135.81 : 884,690.35 = 369,292.12 : x - Step 2: Convert to fraction form
641,135.81/884,690.35 = 369,292.12/x - Step 3: Cross multiply
641,135.81x = 884,690.35 × 369,292.12 - Step 4: Simplify right side
641,135.81x = 326,709,168,625.13 - Step 5: Solve for x
x = 326,709,168,625.13/641,135.81 - Step 6: Final answer
x = 509,578.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.