Finding the Fourth Proportional to 398,983.98, 601,141.26 and 361,084.14
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Solution
The fourth proportional to 398,983.98, 601,141.26 and 361,084.14 is: 544,038.32
Step by Step Solution
- Step 1: Write the proportion equation
398,983.98 : 601,141.26 = 361,084.14 : x - Step 2: Convert to fraction form
398,983.98/601,141.26 = 361,084.14/x - Step 3: Cross multiply
398,983.98x = 601,141.26 × 361,084.14 - Step 4: Simplify right side
398,983.98x = 217,062,574,885.62 - Step 5: Solve for x
x = 217,062,574,885.62/398,983.98 - Step 6: Final answer
x = 544,038.32
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.