Finding the Fourth Proportional to 2,130,311.36, 3,194,365.44 and 782,127.92
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Solution
The fourth proportional to 2,130,311.36, 3,194,365.44 and 782,127.92 is: 1,172,787.44
Step by Step Solution
- Step 1: Write the proportion equation
2,130,311.36 : 3,194,365.44 = 782,127.92 : x - Step 2: Convert to fraction form
2,130,311.36/3,194,365.44 = 782,127.92/x - Step 3: Cross multiply
2,130,311.36x = 3,194,365.44 × 782,127.92 - Step 4: Simplify right side
2,130,311.36x = 2,498,402,397,307.09 - Step 5: Solve for x
x = 2,498,402,397,307.09/2,130,311.36 - Step 6: Final answer
x = 1,172,787.44
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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.