Finding the Fourth Proportional to 4,920,382.44, 7,380,075.31 and 1,326,512.68
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Solution
The fourth proportional to 4,920,382.44, 7,380,075.31 and 1,326,512.68 is: 1,989,634.66
Step by Step Solution
- Step 1: Write the proportion equation
4,920,382.44 : 7,380,075.31 = 1,326,512.68 : x - Step 2: Convert to fraction form
4,920,382.44/7,380,075.31 = 1,326,512.68/x - Step 3: Cross multiply
4,920,382.44x = 7,380,075.31 × 1,326,512.68 - Step 4: Simplify right side
4,920,382.44x = 9,789,763,456,303.46 - Step 5: Solve for x
x = 9,789,763,456,303.46/4,920,382.44 - Step 6: Final answer
x = 1,989,634.66
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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.