Finding the Fourth Proportional to 1,543,018.26, 2,128,873.10 and 999,570.62
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Solution
The fourth proportional to 1,543,018.26, 2,128,873.10 and 999,570.62 is: 1,379,088.67
Step by Step Solution
- Step 1: Write the proportion equation
1,543,018.26 : 2,128,873.10 = 999,570.62 : x - Step 2: Convert to fraction form
1,543,018.26/2,128,873.10 = 999,570.62/x - Step 3: Cross multiply
1,543,018.26x = 2,128,873.10 × 999,570.62 - Step 4: Simplify right side
1,543,018.26x = 2,127,959,004,468.32 - Step 5: Solve for x
x = 2,127,959,004,468.32/1,543,018.26 - Step 6: Final answer
x = 1,379,088.67
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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.