Finding the Fourth Proportional to 354,716.64, 489,569.76 and 338,772.96
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Solution
The fourth proportional to 354,716.64, 489,569.76 and 338,772.96 is: 467,564.75
Step by Step Solution
- Step 1: Write the proportion equation
354,716.64 : 489,569.76 = 338,772.96 : x - Step 2: Convert to fraction form
354,716.64/489,569.76 = 338,772.96/x - Step 3: Cross multiply
354,716.64x = 489,569.76 × 338,772.96 - Step 4: Simplify right side
354,716.64x = 165,852,996,721.69 - Step 5: Solve for x
x = 165,852,996,721.69/354,716.64 - Step 6: Final answer
x = 467,564.75
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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.