Finding the Fourth Proportional to 3,545,081.07, 5,317,730.80 and 1,386,019.99
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Solution
The fourth proportional to 3,545,081.07, 5,317,730.80 and 1,386,019.99 is: 2,079,072.68
Step by Step Solution
- Step 1: Write the proportion equation
3,545,081.07 : 5,317,730.80 = 1,386,019.99 : x - Step 2: Convert to fraction form
3,545,081.07/5,317,730.80 = 1,386,019.99/x - Step 3: Cross multiply
3,545,081.07x = 5,317,730.80 × 1,386,019.99 - Step 4: Simplify right side
3,545,081.07x = 7,370,481,193,420.81 - Step 5: Solve for x
x = 7,370,481,193,420.81/3,545,081.07 - Step 6: Final answer
x = 2,079,072.68
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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.