Finding the Fourth Proportional to 1,571,473.99, 2,169,418.85 and 1,028,439.23
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Solution
The fourth proportional to 1,571,473.99, 2,169,418.85 and 1,028,439.23 is: 1,419,759.71
Step by Step Solution
- Step 1: Write the proportion equation
1,571,473.99 : 2,169,418.85 = 1,028,439.23 : x - Step 2: Convert to fraction form
1,571,473.99/2,169,418.85 = 1,028,439.23/x - Step 3: Cross multiply
1,571,473.99x = 2,169,418.85 × 1,028,439.23 - Step 4: Simplify right side
1,571,473.99x = 2,231,115,451,641.49 - Step 5: Solve for x
x = 2,231,115,451,641.49/1,571,473.99 - Step 6: Final answer
x = 1,419,759.71
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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.