Finding the Fourth Proportional to 1,543,018.25, 2,128,873.11 and 999,570.62
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Solution
The fourth proportional to 1,543,018.25, 2,128,873.11 and 999,570.62 is: 1,379,088.69
Step by Step Solution
- Step 1: Write the proportion equation
1,543,018.25 : 2,128,873.11 = 999,570.62 : x - Step 2: Convert to fraction form
1,543,018.25/2,128,873.11 = 999,570.62/x - Step 3: Cross multiply
1,543,018.25x = 2,128,873.11 × 999,570.62 - Step 4: Simplify right side
1,543,018.25x = 2,127,959,014,464.03 - Step 5: Solve for x
x = 2,127,959,014,464.03/1,543,018.25 - Step 6: Final answer
x = 1,379,088.69
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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.