Finding the Fourth Proportional to 1,820,243.49, 2,512,435.58 and 1,056,543.09
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Solution
The fourth proportional to 1,820,243.49, 2,512,435.58 and 1,056,543.09 is: 1,458,319.43
Step by Step Solution
- Step 1: Write the proportion equation
1,820,243.49 : 2,512,435.58 = 1,056,543.09 : x - Step 2: Convert to fraction form
1,820,243.49/2,512,435.58 = 1,056,543.09/x - Step 3: Cross multiply
1,820,243.49x = 2,512,435.58 × 1,056,543.09 - Step 4: Simplify right side
1,820,243.49x = 2,654,496,451,119.14 - Step 5: Solve for x
x = 2,654,496,451,119.14/1,820,243.49 - Step 6: Final answer
x = 1,458,319.43
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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.