Finding the Fourth Proportional to 1,802,812.20, 2,487,910.18 and 987,002.12
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Solution
The fourth proportional to 1,802,812.20, 2,487,910.18 and 987,002.12 is: 1,362,078.99
Step by Step Solution
- Step 1: Write the proportion equation
1,802,812.20 : 2,487,910.18 = 987,002.12 : x - Step 2: Convert to fraction form
1,802,812.20/2,487,910.18 = 987,002.12/x - Step 3: Cross multiply
1,802,812.20x = 2,487,910.18 × 987,002.12 - Step 4: Simplify right side
1,802,812.20x = 2,455,572,622,029.58 - Step 5: Solve for x
x = 2,455,572,622,029.58/1,802,812.20 - Step 6: Final answer
x = 1,362,078.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.