Finding the Fourth Proportional to 1,356,821.70, 2,035,232.55 and 557,837.70
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Solution
The fourth proportional to 1,356,821.70, 2,035,232.55 and 557,837.70 is: 836,756.55
Step by Step Solution
- Step 1: Write the proportion equation
1,356,821.70 : 2,035,232.55 = 557,837.70 : x - Step 2: Convert to fraction form
1,356,821.70/2,035,232.55 = 557,837.70/x - Step 3: Cross multiply
1,356,821.70x = 2,035,232.55 × 557,837.70 - Step 4: Simplify right side
1,356,821.70x = 1,135,329,444,657.14 - Step 5: Solve for x
x = 1,135,329,444,657.14/1,356,821.70 - Step 6: Final answer
x = 836,756.55
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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.