Finding the Fourth Proportional to 1,428,620.64, 2,143,532.14 and 889,328.31
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Solution
The fourth proportional to 1,428,620.64, 2,143,532.14 and 889,328.31 is: 1,334,366.70
Step by Step Solution
- Step 1: Write the proportion equation
1,428,620.64 : 2,143,532.14 = 889,328.31 : x - Step 2: Convert to fraction form
1,428,620.64/2,143,532.14 = 889,328.31/x - Step 3: Cross multiply
1,428,620.64x = 2,143,532.14 × 889,328.31 - Step 4: Simplify right side
1,428,620.64x = 1,906,303,815,496.88 - Step 5: Solve for x
x = 1,906,303,815,496.88/1,428,620.64 - Step 6: Final answer
x = 1,334,366.70
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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.