Finding the Fourth Proportional to 1,389,367.98, 2,084,051.97 and 392,095.98
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Solution
The fourth proportional to 1,389,367.98, 2,084,051.97 and 392,095.98 is: 588,143.97
Step by Step Solution
- Step 1: Write the proportion equation
1,389,367.98 : 2,084,051.97 = 392,095.98 : x - Step 2: Convert to fraction form
1,389,367.98/2,084,051.97 = 392,095.98/x - Step 3: Cross multiply
1,389,367.98x = 2,084,051.97 × 392,095.98 - Step 4: Simplify right side
1,389,367.98x = 817,148,399,548.08 - Step 5: Solve for x
x = 817,148,399,548.08/1,389,367.98 - Step 6: Final answer
x = 588,143.97
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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.