Finding the Fourth Proportional to 1,378,936.98, 2,068,398.79 and 354,266.46
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Solution
The fourth proportional to 1,378,936.98, 2,068,398.79 and 354,266.46 is: 531,397.97
Step by Step Solution
- Step 1: Write the proportion equation
1,378,936.98 : 2,068,398.79 = 354,266.46 : x - Step 2: Convert to fraction form
1,378,936.98/2,068,398.79 = 354,266.46/x - Step 3: Cross multiply
1,378,936.98x = 2,068,398.79 × 354,266.46 - Step 4: Simplify right side
1,378,936.98x = 732,764,316,315.92 - Step 5: Solve for x
x = 732,764,316,315.92/1,378,936.98 - Step 6: Final answer
x = 531,397.97
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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.