Finding the Fourth Proportional to 4,980,728.05, 7,470,348.49 and 1,386,120.17
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Solution
The fourth proportional to 4,980,728.05, 7,470,348.49 and 1,386,120.17 is: 2,078,973.32
Step by Step Solution
- Step 1: Write the proportion equation
4,980,728.05 : 7,470,348.49 = 1,386,120.17 : x - Step 2: Convert to fraction form
4,980,728.05/7,470,348.49 = 1,386,120.17/x - Step 3: Cross multiply
4,980,728.05x = 7,470,348.49 × 1,386,120.17 - Step 4: Simplify right side
4,980,728.05x = 10,354,800,718,918.04 - Step 5: Solve for x
x = 10,354,800,718,918.04/4,980,728.05 - Step 6: Final answer
x = 2,078,973.32
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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.