Finding the Fourth Proportional to 982,759.80, 1,474,139.70 and 317,911.80
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Solution
The fourth proportional to 982,759.80, 1,474,139.70 and 317,911.80 is: 476,867.70
Step by Step Solution
- Step 1: Write the proportion equation
982,759.80 : 1,474,139.70 = 317,911.80 : x - Step 2: Convert to fraction form
982,759.80/1,474,139.70 = 317,911.80/x - Step 3: Cross multiply
982,759.80x = 1,474,139.70 × 317,911.80 - Step 4: Simplify right side
982,759.80x = 468,646,405,478.46 - Step 5: Solve for x
x = 468,646,405,478.46/982,759.80 - Step 6: Final answer
x = 476,867.70
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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.