Finding the Fourth Proportional to 879,882.20, 1,321,427.10 and 769,657.40
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Solution
The fourth proportional to 879,882.20, 1,321,427.10 and 769,657.40 is: 1,155,888.99
Step by Step Solution
- Step 1: Write the proportion equation
879,882.20 : 1,321,427.10 = 769,657.40 : x - Step 2: Convert to fraction form
879,882.20/1,321,427.10 = 769,657.40/x - Step 3: Cross multiply
879,882.20x = 1,321,427.10 × 769,657.40 - Step 4: Simplify right side
879,882.20x = 1,017,046,146,075.54 - Step 5: Solve for x
x = 1,017,046,146,075.54/879,882.20 - Step 6: Final answer
x = 1,155,888.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.