Finding the Fourth Proportional to 907,992.43, 1,361,515.71 and 338,905.49
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Solution
The fourth proportional to 907,992.43, 1,361,515.71 and 338,905.49 is: 508,181.72
Step by Step Solution
- Step 1: Write the proportion equation
907,992.43 : 1,361,515.71 = 338,905.49 : x - Step 2: Convert to fraction form
907,992.43/1,361,515.71 = 338,905.49/x - Step 3: Cross multiply
907,992.43x = 1,361,515.71 × 338,905.49 - Step 4: Simplify right side
907,992.43x = 461,425,153,838.18 - Step 5: Solve for x
x = 461,425,153,838.18/907,992.43 - Step 6: Final answer
x = 508,181.72
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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.