Finding the Fourth Proportional to 354,304.13, 489,814.49 and 339,432.53
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Solution
The fourth proportional to 354,304.13, 489,814.49 and 339,432.53 is: 469,254.97
Step by Step Solution
- Step 1: Write the proportion equation
354,304.13 : 489,814.49 = 339,432.53 : x - Step 2: Convert to fraction form
354,304.13/489,814.49 = 339,432.53/x - Step 3: Cross multiply
354,304.13x = 489,814.49 × 339,432.53 - Step 4: Simplify right side
354,304.13x = 166,258,969,970.87 - Step 5: Solve for x
x = 166,258,969,970.87/354,304.13 - Step 6: Final answer
x = 469,254.97
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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.