Finding the Fourth Proportional to 840,812.01, 1,261,660.88 and 486,075.17
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Solution
The fourth proportional to 840,812.01, 1,261,660.88 and 486,075.17 is: 729,368.77
Step by Step Solution
- Step 1: Write the proportion equation
840,812.01 : 1,261,660.88 = 486,075.17 : x - Step 2: Convert to fraction form
840,812.01/1,261,660.88 = 486,075.17/x - Step 3: Cross multiply
840,812.01x = 1,261,660.88 × 486,075.17 - Step 4: Simplify right side
840,812.01x = 613,262,021,635.23 - Step 5: Solve for x
x = 613,262,021,635.23/840,812.01 - Step 6: Final answer
x = 729,368.77
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1.5x scale
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.